Perhaps you should try some spelling variations:
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - hanh ((tinh cua) or (trinh luat)) dung cong tan ((than cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh ((tinh cua) OR (trinh luat)) dung cong tan ((than cao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh ((tinh cua) or (trinh luat)) dung cong tan ((than cao) or (than cap))*.