Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
khoan cam » khoa cam, khoan va, phan cam
ho chieu » theo chieu, doi chieu, mot chieu
trung am » trung tam, trung nam, trung dam
cong san » cong tac
than cap » khan cap, thanh lap, thanh cac
am dung » am duong, lam dung, ap dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) xanh - thanh trung am dung cong san ((than cap) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - thanh trung am dung cong san ((than cap) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - thanh trung am dung cong san ((than cap) or (khoan cam))*.