Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
doi cua » hoi cua
ma hoi » mai hoi, xa hoi, me hoi
ve cam » ve cham, ve cac, va cam
va dan » ca dan, va dao, va dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ((ma hoi) OR (ma hoa)). hieu ve cam duc va dan ((dai cua) OR (doi cua)) te~.
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang ((ma hoi) or (ma hoa)). hieu ve cam duc va dan ((dai cua) or (doi cua)) te*.