Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh dung » thanh duong, thanh tung, thanh hung
thong cong » tong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
dung cua » dung luan, dung cho
than ban » thanh ban, than man, nhuan ban
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 dung cua ((thong cong) OR (trong cong)) tan ((than ban) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh dung cua ((thong cong) OR (trong cong)) tan ((than ban) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh dung cua ((thong cong) OR (trong cong)) tan ((than ban) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh dung cua ((thong cong) OR (trong cong)) tan ((than ban) or (toan ban))*.