Perhaps you should try some spelling variations:
wan planning » land planning, plan planning, dam planning
planning can » planning chain, planning case, planning land
china tan » china top, china two, china taiwan
yang yang » wang yang
yang tan » yang fan, yang dean, liang tan
hong hai » shang hai, zhong tai, dang hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan planning can china tan ((yang tan) or (((yang yang) OR (wang yan)))) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan planning can china tan ((yang tan) OR (((yang yang) OR (wang yan)))) hong hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan planning can china tan ((yang tan) or (((yang yang) OR (wang yan)))) hong hai ;*".