Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh van » trinh han, trinh quan, trinh toan
dang cong » dung cong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » 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 ((hieu manh) or (chieu tinh)) - canh ((tranh va) or (trinh van)) dang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - canh ((tranh va) OR (trinh van)) dang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu tinh)) - canh ((tranh va) or (trinh van)) dang cong dan toan cau*.