Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
dan thanh » dang thanh, danh thanh, ban thanh
thai cua » than cua, tai cuc, tri cua
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
ve phat » va phat, te phat, ve chat
de phat » de phap, te phat, dao phat
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang xa hoi. hieu ((ve phat) OR (de phat)) hoc dan thanh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. hieu ((ve phat) OR (de phat)) hoc dan thanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. hieu ((ve phat) OR (de phat)) hoc dan thanh thai cua tre*.