Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thuoc sac » thuoc dac, thuoc sai, thuoc san
chat truc » cau truc, chat xuc
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
van chat » cao chat
dinh dai » dinh dat, sinh dai, dinh dao
nang xa » nang x, lang xa, nang ma
truc va » thuc va, thuc vat, trung va
va dinh » van dinh, va kinh, va tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sac) or (thuoc sach)) ky nang xa hoi. hieu van chat truc va dinh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sac) OR (thuoc sach)) ky nang xa hoi. hieu van chat truc va dinh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sac) or (thuoc sach)) ky nang xa hoi. hieu van chat truc va dinh dai cua triet*.