Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa
cua tre » cua te, cuu tre, cua triet
dua ban » dia ban, cua ban, qua ban
nang xa » nang x, lang xa, nang ma
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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

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