Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
thuc ban » thuoc ban, thuc dan, thu ban
nang xa » nang x, lang xa, nang ma
vu kham » vu khanh
tuc ban » truc ban, tu ban, tuc dan
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang xa hoi. hieu ((vu kham) or (cao chat)) ((tuc ban) OR (thuc ban)) thanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((vu kham) OR (cao chat)) ((tuc ban) OR (thuc ban)) thanh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ((vu kham) or (cao chat)) ((tuc ban) OR (thuc ban)) thanh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((vu kham) or (cao chat)) ((tuc ban) OR (thuc ban)) thanh dai cua tre*.