Perhaps you should try some spelling variations:
trung thanh » truong thanh
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung tam, tran tuan, truong thanh
cong tang » cong thang, cong lang, cong vang
cong tan » cong tac, cong san, cong thanh
toan ban » van ban

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 sang - thanh ((trung tuan) OR (trung thanh)) hang ((cong tan) or (cong tang)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - thanh ((trung tuan) OR (trung thanh)) hang ((cong tan) OR (cong tang)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - thanh ((trung tuan) OR (trung thanh)) hang ((cong tan) or (cong tang)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - thanh ((trung tuan) OR (trung thanh)) hang ((cong tan) or (cong tang)) toan ban*.