Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
thanh dai » thanh hai, thanh tai, thanh oai
nang xa » nang x, lang xa, nang ma
qua hai » qua hoat
xuc gia » duc gia, luc gia, tuc gia
cua tre » cua te, cuu tre, cua triet
su van » tu van, vu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: su van ky nang xa hoi. hieu qua hai ((xuc gia) or (quoc gia)) ((thanh dai) OR (thanh dat)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su van ky nang xa hoi. hieu qua hai ((xuc gia) OR (quoc gia)) ((thanh dai) OR (thanh dat)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su van ky nang xa hoi. hieu qua hai ((xuc gia) or (quoc gia)) ((thanh dai) OR (thanh dat)) cua tre*".