Perhaps you should try some spelling variations:
planning chain » planning china, planning can, planning gain
dam planning » term planning, from planning, land planning
chain change » can change, than change, champion change
using tik » using ti, using time, using task
tung xuan » truong xuan
hong hai » shang hai, zhong tai, dang hai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: dam planning chain change models using tik ((tung xuan) OR (hong hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: dam planning chain change models using tik ((tung xuan) or (hong hai)) ;*.