Perhaps you should try some spelling variations:
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
chi sach » chinh sach, chieu sach, co sach
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh ve, trinh vi
cong tac » cong ty
tac phat » tac pham, tam phat, tan phat
phat cac » phan cac, pha cac, phap cac
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - canh ((tranh va) or (((trinh va) or (trinh vat)))) dung cong tac phat cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - canh ((tranh va) OR (((trinh va) OR (trinh vat)))) dung cong tac phat cac.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - canh ((tranh va) or (((trinh va) or (trinh vat)))) dung cong tac phat cac*.