Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
phan dau » phan tu, hang dau
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
hanh de » hanh ve, hanh kem
y nang » ky nang, ly nang, v nang
de cua » le cua, te cua, dieu 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 y nang xa hoi. hieu ((van cau) or (phan dau)) thuc dan hanh de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((van cau) OR (phan dau)) thuc dan hanh de cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((van cau) or (phan dau)) thuc dan hanh de cua te*.