Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, truong thanh
vuong tat » luong tai, tuong tac, duong tai
vuong thi » luong thi, duong thi, truong thi
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong ty
toan ban » van ban

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 ((vuong tat) or (vuong thi)) nhung ((cong thanh) OR (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh ((vuong tat) OR (vuong thi)) nhung ((cong thanh) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh ((vuong tat) or (vuong thi)) nhung ((cong thanh) OR (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh ((vuong tat) or (vuong thi)) nhung ((cong thanh) OR (cong tan)) toan ban*.