Perhaps you should try some spelling variations:
tranh chua » tranh cua, trinh chuan, tranh chap
hoc thieu » toc thieu, hoc hien
thi chien » thi hien, thi thien, thien chien
chua bang » chu bang, chua nang, chua xang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than ban » thanh ban, toan ban, than man

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) or (thi chien)) xanh - canh tranh chua bang ((cong dan) OR (cong san)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (thi chien)) xanh - canh tranh chua bang ((cong dan) OR (cong san)) than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (thi chien)) xanh - canh tranh chua bang ((cong dan) OR (cong san)) than ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (thi chien)) xanh - canh tranh chua bang ((cong dan) OR (cong san)) than ban*.