Perhaps you should try some spelling variations:
trung tran » trung thanh, trung tam, hung tran
trung tuan » trung thanh, trung tam, tran tuan
phong cong » phong chong, thong cong, chong cong
doi chieu » doi chi, ho chieu, mot chieu
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
pham tu » phan tu, pham thi, pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doc hieu)) xanh - thanh ((trung tran) OR (trung tuan)) phong cong san pham tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) xanh - thanh ((trung tran) OR (trung tuan)) phong cong san pham tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doc hieu)) xanh - thanh ((trung tran) OR (trung tuan)) phong cong san pham tu".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) xanh - thanh ((trung tran) OR (trung tuan)) phong cong san pham tu*.