Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
hieu lang » chieu sang, hieu quang, nhieu tang
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
nong tan » nong dan, nong san, nong van
cong tan » cong tac, cong san, cong thanh
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: theo ((hieu manh) or (hieu lang)) - anh tang cua nhung ((nong tan) OR (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (hieu lang)) - anh tang cua nhung ((nong tan) OR (cong tan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (hieu lang)) - anh tang cua nhung ((nong tan) OR (cong tan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (hieu lang)) - anh tang cua nhung ((nong tan) OR (cong tan)) toan cau*.