Perhaps you should try some spelling variations:
thuoc dac » thuoc dang, thuoc sach, thuc dan
nam thuoc » nam thuc, nam thu, nha thuoc
dac thanh » dao thanh, duc thanh, bac thanh
thanh doi » thanh loi, thanh moi, thanh do
hieu van » hieu va, thien van, lieu va
toc sac » toc sach, hoc sach, doc sach
nang xa » nang x, lang xa, nang ma
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sac) or (toc san)) ky nang xa hoi. hieu van nam thuoc dac thanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sac) OR (toc san)) ky nang xa hoi. hieu van nam thuoc dac thanh doi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((toc sac) or (toc san)) ky nang xa hoi. hieu van nam thuoc dac thanh doi cua tre*.