Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
nha thong » nhan thong, nhat thuong, nghe thong
thong tu » phong tuc, thong tin, thong ke
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan tap » toan ban
tu hang » thu hang, tu hanh, tu hung

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 manh) or (chieu tinh)) - nha thong tu hang ((cong dan) or (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu tinh)) - nha thong tu hang ((cong dan) OR (cong san)) toan tap.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu tinh)) - nha thong tu hang ((cong dan) or (cong san)) toan tap*.