Perhaps you should try some spelling variations:
chieu manh » hieu manh, chu manh, chieu sach
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: theo ((chieu manh) or (chieu xanh)) - hanh ((tang cua) OR (tang luan)) thong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu manh) OR (chieu xanh)) - hanh ((tang cua) OR (tang luan)) thong cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu manh) or (chieu xanh)) - hanh ((tang cua) OR (tang luan)) thong cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu manh) or (chieu xanh)) - hanh ((tang cua) OR (tang luan)) thong cong tan toan cau*.