Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh tra, thanh tuan
thong cong » trong cong, tong cong, thong thong
thanh toan » thanh hoa, thanh san, tinh toan
doi chieu » doi chi, ho chieu, mot chieu
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
tran van » luan van
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) OR (doc hieu)) xanh - thanh tran van ((thong cong) or (hang cong)) thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - thanh tran van ((thong cong) OR (hang cong)) thanh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doc hieu)) xanh - thanh tran van ((thong cong) or (hang cong)) thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doc hieu)) xanh - thanh tran van ((thong cong) or (hang cong)) thanh toan cao*.