Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tang thanh » dang thanh, trung thanh, hoang thanh
hanh dung » thanh dung, anh dung, hanh dong
dung cong » dung trong
cong tang » cong thang, cong tan, cong lang
thanh lap » thanh san, phan lap, thanh hai
dung cao » duong cao, dung cho, dung co
cao dung » cao dang, cao dong, cao ung

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 sach) or (trieu tinh)) - hanh dung cao dung cong tang thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (trieu tinh)) - hanh dung cao dung cong tang thanh lap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (trieu tinh)) - hanh dung cao dung cong tang thanh lap*.