Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
vanh tai » van tai, hanh tai, anh tai
cham xuc » cam xuc, chat xuc, cham soc
qua cham » qua hai, qua cac, va cham
tu sach » su sach, te sach, tu cach
tai cua » thai cua, tai cuc, tri cua
va vanh » va van, va danh, va hanh
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu sach)) ((ky lang) or (ky tang)) xa hoi. hieu qua cham xuc va vanh tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ((ky lang) OR (ky tang)) xa hoi. hieu qua cham xuc va vanh tai cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ((ky lang) or (ky tang)) xa hoi. hieu qua cham xuc va vanh tai cua tu*.