Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
khang cong » thanh cong, dang cong, phan cong
hoc chieu » hoc thieu, ho chieu, hoc dieu
hang cong » dang cong, hang nong, bang cong
tran van » luan van
san quan » van quan, ban quan, dan quan
quan tai » quan tri, quang tri, quan li

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

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