Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tang » hanh trang, hanh mang, hanh tung
toc hieu » toc thieu, doc hieu, hoc thieu
anh tang » anh bang, anh dang, anh nang
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: toc hieu manh - ((hanh tang) or (anh tang)) va nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - ((hanh tang) OR (anh tang)) va nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - ((hanh tang) or (anh tang)) va nhung cong dan toan cau*.