Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
tieu sang » chieu sang, tieu dung, tiem nang
thanh cac » hanh cac, thanh bac, thanh ca
cua rung » cua trung, cua rang, cua truong
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, than cua

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 sang - hanh tranh ((cua rung) or (cua dong)) cong dan ((than cap) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - hanh tranh ((cua rung) OR (cua dong)) cong dan ((than cap) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sang - hanh tranh ((cua rung) or (cua dong)) cong dan ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - hanh tranh ((cua rung) or (cua dong)) cong dan ((than cap) OR (thanh cac))*.