Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » hoc hien
tranh van » tran van, trinh van, thanh van
tranh va » trang va, trinh va, thanh va
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 thieu) OR (toc thieu)) xanh - canh ((tranh va) OR (tranh van)) nhung cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - canh ((tranh va) OR (tranh van)) nhung cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - canh ((tranh va) OR (tranh van)) nhung cong tan toan tap*.