Perhaps you should try some spelling variations:
dung cong » dung trong
hoc xanh » hoc anh, hoc hanh, hoc danh
tuan cao » juan cao, quang cao, thuan cam
cao dung » cao dang, cao dong, cao ung
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van ban
he xanh » heo xanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((he xanh) or (hoc xanh)) - anh tuan cao dung cong tan ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((he xanh) OR (hoc xanh)) - anh tuan cao dung cong tan ((toan cao) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((he xanh) or (hoc xanh)) - anh tuan cao dung cong tan ((toan cao) OR (toan ban))*".