Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung cua thong ((cong tac) OR (cong ty)) ((phan cac) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh trung cua thong ((cong tac) OR (cong ty)) ((phan cac) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung cua thong ((cong tac) OR (cong ty)) ((phan cac) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung cua thong ((cong tac) OR (cong ty)) ((phan cac) or (phan dau))*.