Perhaps you should try some spelling variations:
thien hoat » trien hoat, thien thuat, tien hoa
trinh ban » trinh han, trinh san, trinh dan
kiem soat » kiem toan
dung lang » dung dang, dung nang, dung land
hieu suat » hieu luat, hieu qua
ban hang » ngan hang
lang van » dang van, tang van, hoang van
van hieu » cao hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh ban hang va ((kiem soat) or (thien hoat)) ) or ( tin dung lang van hieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh ban hang va ((kiem soat) OR (thien hoat)) ) OR ( tin dung lang van hieu suat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh ban hang va ((kiem soat) or (thien hoat)) ) or ( tin dung lang van hieu suat ))*.