Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nang cong » nang song, dang cong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
trang va » tran van, hang va
dan than » dan chan, ban than, van than
van chat » cao chat
tang va » tang van, thang va, tang vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((tang va) or (trang va)) nang cong ((dan than) or (van chat)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((tang va) OR (trang va)) nang cong ((dan than) OR (van chat)) man.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((tang va) or (trang va)) nang cong ((dan than) or (van chat)) man*.