Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
thanh vi » hanh vi, thanh va, thanh ve
luoc gia » quoc gia, luc gia, luong gia
cam luoc » cam xuc, tom luoc, cam lo
cau treo » cau theo, cau tren, cau triet
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (hoc sach)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luoc gia thanh vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ty nang xa hoi. ((hieu ve) OR (hieu qua)) cam luoc gia thanh vi cau treo.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) ty nang xa hoi. ((hieu ve) or (hieu qua)) cam luoc gia thanh vi cau treo*.