Perhaps you should try some spelling variations:
trong chuan » thong chuan, trong chan, trong thuan
chieu tinh » trieu tinh, lieu tinh, chau tinh
manh trong » manh truong, anh trong, manh trung
chuan nang » chua nang, chuan trang, chuc nang
doi chieu » doc hieu, doi chi, ho chieu
cong tang » cong thang, cong lang, cong vang
cong tan » cong tac, cong san, cong thanh
tuan ban » tuan bang, toan ban, luan ban

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 tinh - manh trong chuan nang ((cong tan) or (cong tang)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - manh trong chuan nang ((cong tan) OR (cong tang)) tuan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - manh trong chuan nang ((cong tan) or (cong tang)) tuan ban*.