Perhaps you should try some spelling variations:
sach doi » sach hoi, sach moi, sach dao
van dinh » van minh, van dich, va dinh
va tinh » may tinh
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach ty
nang ma » tang ma, sang ma, nang cao
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di 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) or (sach doi)) nang ma hoi. hieu ve cam xuc ((van dinh) or (va tinh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ly) OR (sach doi)) nang ma hoi. hieu ve cam xuc ((van dinh) OR (va tinh)) vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach doi)) nang ma hoi. hieu ve cam xuc ((van dinh) or (va tinh)) vi cua te*.