Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh lai » danh sai, gianh lai, dinh lam
phan duc » pham duc, phan tu, phan dau
hieu van » hieu va, thien van, lieu va
thu sach » tu sach, thuat sach, thuoc sach
va danh » va dinh, va dan, va hanh
nang ma » tang ma, sang ma, nang cao
xang ma » tang ma, sang ma, rang ma
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((xang ma) or (nang ma)) hoi. hieu van ((phan duc) or (cham soc)) va danh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((xang ma) OR (nang ma)) hoi. hieu van ((phan duc) OR (cham soc)) va danh lai cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach y ((xang ma) or (nang ma)) hoi. hieu van ((phan duc) or (cham soc)) va danh lai cua triet*.