Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
hanh tang » hanh trang, hanh mang, hanh tung
anh tang » anh bang, anh dang, anh nang
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban
chu van » chu han

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu van) OR (cuu van)) - ((hanh tang) or (anh tang)) cua nhung cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu van) OR (cuu van)) - ((hanh tang) OR (anh tang)) cua nhung cong san toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu van) OR (cuu van)) - ((hanh tang) or (anh tang)) cua nhung cong san toan tap*".