Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
hinh tai » chinh tai, hinh thai, hinh bai
cam tuc » cam xuc, cam tu, nam thuc
qua cam » qua cham, qua cac, qua ca
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa
v nang » va nang, vu nang, van nang
cua te » cua tu

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)) v nang ma hoi. hieu qua cam tuc va ((hinh tai) or (dung tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) v nang ma hoi. hieu qua cam tuc va ((hinh tai) OR (dung tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (hoc sach)) v nang ma hoi. hieu qua cam tuc va ((hinh tai) or (dung tai)) cua te*.