Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
cam thuc » am thuc, nam thuc, cam thu
hanh de » hanh ve
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, xach tay
thuc va » thuc vat, thuc dan, thuc day
ve cam » ve cham, ve cac, va cam
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: thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam thuc va ((hanh de) OR (hanh kem)) cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam thuc va ((hanh de) or (hanh kem)) cua te~".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach thu)) nang xa hoi. hieu ve cam thuc va ((hanh de) or (hanh kem)) cua te*.