Perhaps you should try some spelling variations:
based compensation » land compensation, wages compensation, based communication
development does » development data, development 1, development 1.1
technology gap » technology 1, technology 2.2, technology 3
gap estimation » naep estimation, 2a estimation, gls estimation
estimation 3 » estimation _
does america » de america, does africa, jobs america
rice based » price based, rule based, face based
3 rice » _ rice, a rice
4 sme » 4 same, _ sme, 4 smt
4 see » _ see, 4 sex, i see

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology gap estimation 3 rice based compensation ((4 sme) OR (4 see)) development does america.~".
• Adding a wildcard symbol may retrieve word variants: technology gap estimation 3 rice based compensation ((4 sme) OR (4 see)) development does america.*.