Perhaps you should try some spelling variations:
tran thanh » ban thanh, van thanh, quan thanh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hoc hieu » hoc hien, doc hieu, hoc dieu
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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: ((hoc hieu) OR (hoc thieu)) manh - hanh ((tran thanh) OR (tang cua)) nhung cong tan toan tap~.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) manh - hanh ((tran thanh) or (tang cua)) nhung cong tan toan tap*.