Perhaps you should try some spelling variations:
thien hieu » thien nhien, thien chien, thien hue
theo hieu » theo chieu, theo tieu, thuc hieu
dong cong » duong cong, dung cong, dang cong
manh cua » doanh cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo hieu) OR (thien hieu)) lang - van ((manh cua) or (ban cua)) dong cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo hieu) OR (thien hieu)) lang - van ((manh cua) OR (ban cua)) dong cong dan toan tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo hieu) OR (thien hieu)) lang - van ((manh cua) or (ban cua)) dong cong dan toan tap*".