Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
dung cong » dung trong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
doc hieu » toc thieu, hoc thieu, hoc hien
trang va » tran van, hang va
toan tap » toan ban
tang va » tang van, thang va, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (doc hieu)) xanh - hanh ((tang va) or (trang va)) dung cong danh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doc hieu)) xanh - hanh ((tang va) OR (trang va)) dung cong danh toan tap.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doc hieu)) xanh - hanh ((tang va) or (trang va)) dung cong danh toan tap*.