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 » ban than, van than, dan toan
dan chan » dan gian, dan ca, van 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 (dan chan)) 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 (dan chan)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((tang va) OR (trang va)) nang cong ((dan than) or (dan chan)) man".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((tang va) OR (trang va)) nang cong ((dan than) or (dan chan)) man*.