Perhaps you should try some spelling variations:
su sach » so sach, vu sach
cac xuc » cam xuc, cac nuoc, chat xuc
nang xa » nang x, lang xa, mang xa
va kinh » va tinh, qua kinh
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
va dinh » van dinh, va tinh, vu dinh
de cua » le cua, te cua, dieu cua
ve cac » va cac, vien cac
sach v » sach va, sach y, sach 2
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: su sach v ((nang xa) OR (nang ma)) hoi. hieu ve cac xuc ((va dinh) or (va kinh)) de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v ((nang xa) OR (nang ma)) hoi. hieu ve cac xuc ((va dinh) OR (va kinh)) de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach v ((nang xa) OR (nang ma)) hoi. hieu ve cac xuc ((va dinh) or (va kinh)) de cua te".
• Adding a wildcard symbol may retrieve word variants: su sach v ((nang xa) OR (nang ma)) hoi. hieu ve cac xuc ((va dinh) or (va kinh)) de cua te*.