Perhaps you should try some spelling variations:
hang cong » dang cong, hang nong, bang cong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
chi xanh » chi anh, chi danh, chi hanh
trang va » hang va
tran van » luan van
toan cao » toan ban, toan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - hanh ((trang va) or (tran van)) hang cong danh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh ((trang va) OR (tran van)) hang cong danh toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh ((trang va) or (tran van)) hang cong danh toan cao*.