Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac, hoc anh
tru nang » tra nang, tri nang, truc nano
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
va cao » va co, va dao, va bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (hoc sach)) tru nang xa hoi. hieu ((va cao) or (va cac)) truc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) tru nang xa hoi. hieu ((va cao) OR (va cac)) truc va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc sach)) tru nang xa hoi. hieu ((va cao) or (va cac)) truc va danh vi cua tre*.