Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh van » trinh han, trinh quan, trinh toan
hang cong » dang cong, hang nong, bang cong
trinh va » trinh vat, trinh ve, trinh vi
cong tai » cong thai, cong tac, dong tai
tai phan » tai thanh, tai phong, tai ngan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - canh ((trinh va) or (((trinh van) or (trinh luat)))) hang cong tai phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - canh ((trinh va) OR (((trinh van) OR (trinh luat)))) hang cong tai phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - canh ((trinh va) or (((trinh van) or (trinh luat)))) hang cong tai phan cau*.