Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
dai cuu » dai huu
cac xuc » cam xuc, cac nuoc, chat xuc
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach uu
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) OR (sach tu)) nang x hoi. hieu va cac xuc va thanh ((dai cuu) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) nang x hoi. hieu va cac xuc va thanh ((dai cuu) OR (dai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) nang x hoi. hieu va cac xuc va thanh ((dai cuu) or (dai cua)) tre*".