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

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 ((tung vat) OR (dung vat)) dung cong tac thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((tung vat) OR (dung vat)) dung cong tac thai cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((tung vat) OR (dung vat)) dung cong tac thai cao*.