Perhaps you should try some spelling variations:
pham tai » pham thi, pham van
tang xa » trang xa, tang ma, lang xa
tai cua » thai cua, tai cuc, tri cua
va pham » van pham, va phat, va phap
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
ky tang » ky nang, ky dang, kho tang
thu san » thuy san, thu ban, phu san
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
tu san » tu ban, tu can, vu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cac) or (((tu san) or (thu san)))) ky tang xa hoi. hieu va cam tuc va pham tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (((tu san) OR (thu san)))) ky tang xa hoi. hieu va cam tuc va pham tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (((tu san) or (thu san)))) ky tang xa hoi. hieu va cam tuc va pham tai cua tre*.