Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
dai huu » dao huu, dai hau, dai thua
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cao, va cai
xuc va » duc va, tuc va, luc va
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 ty nang x hoi. hieu ((va cam) OR (va cac)) xuc va thanh ((dai huu) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu ((va cam) OR (va cac)) xuc va thanh ((dai huu) OR (dai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang x hoi. hieu ((va cam) OR (va cac)) xuc va thanh ((dai huu) or (dai cua)) tre*".