Perhaps you should try some spelling variations:
kho nghiep » khoi nghiep, khao nghiep, khao nghiem
hoach thi » hoach thu, hoach toi, hoach thay
nghiem xu » nghiem su, nghiem xuan, nghiem dau
thu khang » thu hang, thu thang, phu khang
khang kho » khong kho, khong khoa, hang khoa
nghiep vu » nghiep va
vu hoc » tu hoc, va hoc, du hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach thi ((nghiem ngu) or (nghiem xu)) hoc ) or ( thu khang kho nghiep vu hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach thi ((nghiem ngu) OR (nghiem xu)) hoc ) OR ( thu khang kho nghiep vu hoc )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach thi ((nghiem ngu) or (nghiem xu)) hoc ) or ( thu khang kho nghiep vu hoc ))*.