Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
truong qua » truong quan, trong qua, truong sua
truong cua » truong ca, truong quan, truong cao
hoc thieu » toc thieu, hoc hien
cong tan » cong san, cong thanh, cong ty
cong tac » 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: hoc thieu xanh - thanh ((truong qua) or (truong cua)) dung ((cong tan) OR (cong tac)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong qua) OR (truong cua)) dung ((cong tan) OR (cong tac)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((truong qua) or (truong cua)) dung ((cong tan) OR (cong tac)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong qua) or (truong cua)) dung ((cong tan) OR (cong tac)) toan ban*.