Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
thanh loi » thanh hoa, thanh hai, thanh lap
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac dac » cac dai, cac bac, cac tac
loi cua » loai cua, hoi cua, doi 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: ((su sach) or (thuat san)) ky nang xa hoi. hieu va ((cac dac) or (cac dan)) va thanh loi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thuat san)) ky nang xa hoi. hieu va ((cac dac) OR (cac dan)) va thanh loi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thuat san)) ky nang xa hoi. hieu va ((cac dac) or (cac dan)) va thanh loi cua tre*.