Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
luong vat » luong va, luong van, luong tai
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
dung vat » dung va, dong vat, dung dat
cong tac » cong ty
thai cao » thoai cac, thuat cao, toan cao
tai cao » tao cao, tai sao, tai cac

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 - thanh ((luong vat) or (dung vat)) dung cong tac ((thai cao) OR (tai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((luong vat) OR (dung vat)) dung cong tac ((thai cao) OR (tai cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((luong vat) or (dung vat)) dung cong tac ((thai cao) OR (tai cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((luong vat) or (dung vat)) dung cong tac ((thai cao) OR (tai cao))*.