Perhaps you should try some spelling variations:
thanh va » thanh van, thanh ha, thanh ve
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
cac tuc » cac toc, cac tu, cac tac
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
so sac » so sach, so dac
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang xa hoi. hieu qua cac tuc va ((thanh va) OR (hanh va)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky nang xa hoi. hieu qua cac tuc va ((thanh va) OR (hanh va)) cua tre".
• Adding a wildcard symbol may retrieve word variants: so sac ky nang xa hoi. hieu qua cac tuc va ((thanh va) OR (hanh va)) cua tre*.