Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
anh truong » manh truong, anh thuong, anh trong
cong quang » luong quang, thong quang, duong quang
truong va » truong dai, truong cao, truong dao
ho chieu » theo chieu, hoc thieu, doi chieu
nong van » song van, nong dan, nong san
tuan cao » toan cao, juan cao, quang cao
va hang » van hang, va nang, va lang

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 - anh truong va hang ((cong quang) or (nong van)) tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - anh truong va hang ((cong quang) OR (nong van)) tuan cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - anh truong va hang ((cong quang) or (nong van)) tuan cao*.