Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
toc sach » hoc sach, doc sach, thuoc sach
vai cua » dai cua, hai cua, lai cua
ty nang » ky nang, ty xang, ty hang
va hanh » van hanh, va thanh, va danh
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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) OR (toc sach)) ty nang x hoi. hieu ((ve cam) or (va cac)) tuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty nang x hoi. hieu ((ve cam) OR (va cac)) tuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty nang x hoi. hieu ((ve cam) or (va cac)) tuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty nang x hoi. hieu ((ve cam) or (va cac)) tuc va hanh vai cua te*.