Perhaps you should try some spelling variations:
hang thai » hoang thai, hang tai, hong thai
hang hai » hoang hai, hang tai, thanh hai
cua tre » cua te, cuu tre, cua triet
cao xuc » cam xuc, cao duc, cao suc
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va
cu dan » cua dan, ca dan, co dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: cu dan ((ky lang) OR (ky tang)) xa hoi. hieu va cao xuc va ((hang thai) or (hang hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cu dan ((ky lang) OR (ky tang)) xa hoi. hieu va cao xuc va ((hang thai) OR (hang hai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cu dan ((ky lang) OR (ky tang)) xa hoi. hieu va cao xuc va ((hang thai) or (hang hai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: cu dan ((ky lang) OR (ky tang)) xa hoi. hieu va cao xuc va ((hang thai) or (hang hai)) cua tre*.