Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cac tham » cac ham, sach tham, cac thanh
va thanh » gia thanh, ban thanh, va tinh
cam truc » cau truc, nam truc, lam truoc
vai cua » dai cua, hai cua, lai cua
truc va » thuc va, thuc vat, trung va
hoc cac » hoc cao
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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

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