Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
cac xuc » cam xuc, cac nuoc, chat xuc
sach ly » sach y, sach lo, sach ty
qua cac » cua cac
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
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: thu sach ly ((nang xa) or (nang ma)) hoi. hieu qua cac xuc ((va hanh) or (van hanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ly ((nang xa) OR (nang ma)) hoi. hieu qua cac xuc ((va hanh) OR (van hanh)) di cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ly ((nang xa) or (nang ma)) hoi. hieu qua cac xuc ((va hanh) or (van hanh)) di cua te*.