Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hanh dung » thanh dung, anh dung, hanh dong
cua thong » cua thuong, cua khong, cua tong
theo chu » theo chieu, cho chu, chao chu
dung cua » dung luan, dung cho
cong tan » cong tac, cong san, cong ty
tran ban » tranh ban, tran van, toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (theo chu)) xanh - hanh dung cua thong ((cong thanh) OR (cong tan)) tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (theo chu)) xanh - hanh dung cua thong ((cong thanh) OR (cong tan)) tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (theo chu)) xanh - hanh dung cua thong ((cong thanh) OR (cong tan)) tran ban".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (theo chu)) xanh - hanh dung cua thong ((cong thanh) OR (cong tan)) tran ban*.