Perhaps you should try some spelling variations:
phan tai » pham tai, nhan tai, phan thi
hieu va » lieu va, hieu qua
cua tre » cuu tre, cua triet, dua tren
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va phan » van phan, va phat, va phap
xuc va » duc va, tuc va, luc va
te cac » tu cac, ve cac, te cao
va cam » va cham, va cac, va cao
tu san » thu san, tu ban, tu can
cua te » cua tu

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

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