Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
nhung cong » dung cong, thong cong, hang cong
hoi hieu » hoi phieu, hoi tieu, moi hieu
mang vua » mang cua, mang va, hang va
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
dang va » dang van, dang vat, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu quang - hanh ((dang va) or (mang vua)) nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu quang - hanh ((dang va) OR (mang vua)) nhung cong tan toan ban*.