Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
trinh van » trinh han, trinh quan, trinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
thi hieu » thi chieu, thi hien, thi dieu
trinh va » trinh vat, trinh ve, trinh vi
cong tam » cong tac, cong tan, cong nam
tam than » ban than
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: ((ho chieu) or (thi hieu)) xanh - hanh ((trinh va) OR (trinh van)) phuong cong tam than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi hieu)) xanh - hanh ((trinh va) OR (trinh van)) phuong cong tam than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (thi hieu)) xanh - hanh ((trinh va) OR (trinh van)) phuong cong tam than cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi hieu)) xanh - hanh ((trinh va) OR (trinh van)) phuong cong tam than cap*.