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
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
ma hoi » xa hoi, ma hoa, me hoi
ve cam » ve cham, ve cac, va cam
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua
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: tu sach ly nang ((ma hoi) or (mai hoi)). hieu ve cam duc va dan di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ((ma hoi) OR (mai hoi)). hieu ve cam duc va dan di cua te*.