Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
hanh dai » hanh tai, hanh dao, vanh dai
te sach » toc sach
dai cuu » dai cua, dai huu
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
nang xa » nang x, lang xa, nang ma
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cai, ve cau
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: te sach thi nang xa hoi. hieu ((((ve cam) or (va cam))) or (ve cac)) xuc va hanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thi nang xa hoi. hieu ((((ve cam) OR (va cam))) OR (ve cac)) xuc va hanh dai cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach thi nang xa hoi. hieu ((((ve cam) or (va cam))) or (ve cac)) xuc va hanh dai cuu tre*.