Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
thong cong » trong cong, tong cong, thong thong
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
cong van » cong vang, cong san, song van
than ban » thanh ban, toan ban, nhuan ban
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (nhieu tang)) - hanh tang cua thong cong van ((than ban) OR (than man))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (nhieu tang)) - hanh tang cua thong cong van ((than ban) OR (than man)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (nhieu tang)) - hanh tang cua thong cong van ((than ban) OR (than man))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (nhieu tang)) - hanh tang cua thong cong van ((than ban) OR (than man))*.