Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, truong thanh
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
tran van » luan van
cong tan » cong tac, cong san, cong ty
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: ho chieu xanh - thanh ((trung va) or (tran van)) nhung ((cong thanh) OR (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh ((trung va) OR (tran van)) nhung ((cong thanh) OR (cong tan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh ((trung va) or (tran van)) nhung ((cong thanh) OR (cong tan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh ((trung va) or (tran van)) nhung ((cong thanh) OR (cong tan)) toan cao*.