Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
day cua » dai cua
dau cua » dai cua, cau cua, dan cua
tu phat » su phat, te phat, cuu phat
sach ky » sac ky, sach y, sach ty
xu phat » su phat, cuu phat
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 ky nang x hoi. hieu ((xu phat) OR (tu phat)) xuc va thanh ((dau cua) or (day cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. hieu ((xu phat) OR (tu phat)) xuc va thanh ((dau cua) OR (day cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. hieu ((xu phat) OR (tu phat)) xuc va thanh ((dau cua) or (day cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. hieu ((xu phat) OR (tu phat)) xuc va thanh ((dau cua) or (day cua)) tre*.