Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
thanh di » thanh de, thanh do, thanh dinh
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ly » sach y, sach lo, sach hay
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao
cua te » cua tu

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: thuoc ((sach ly) OR (sach ty)) nang xa hoi. hieu va cam duc va ((thanh di) OR (thanh doi)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach ly) or (sach ty)) nang xa hoi. hieu va cam duc va ((thanh di) OR (thanh doi)) cua te~".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach ly) or (sach ty)) nang xa hoi. hieu va cam duc va ((thanh di) OR (thanh doi)) cua te*.