Perhaps you should try some spelling variations:
truong luan » truong quan, truong luat, truong quang
trung luan » trung tuan, trung quan, truong luat
cong thanh » dong thanh, cong trinh, cong tan
thanh tran » thanh trang, thanh toan, thanh tra
hoc thieu » hoc hien
tac cong » tac chong, cac cong, tac dong

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 (toc thieu)) xanh - thanh ((trung luan) OR (truong luan)) tac cong thanh tran duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - thanh ((trung luan) OR (truong luan)) tac cong thanh tran duc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (toc thieu)) xanh - thanh ((trung luan) OR (truong luan)) tac cong thanh tran duc".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) xanh - thanh ((trung luan) OR (truong luan)) tac cong thanh tran duc*.