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