Perhaps you should try some spelling variations:
thai cua » than cua, tai cuc, tri cua
han thai » han tai, ban thai, van thai
pham duy » pham duc
va pham » van pham, va phat, va phap
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
duy va » duy vat, duy van, day va
va han » va phan, van han, va hanh
tu san » thu san, tu ban, tu can
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ve cac) or (tu san)) ((ky tang) OR (ky dang)) xa hoi. hieu va pham duy va han thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ve cac) OR (tu san)) ((ky tang) OR (ky dang)) xa hoi. hieu va pham duy va han thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ve cac) or (tu san)) ((ky tang) OR (ky dang)) xa hoi. hieu va pham duy va han thai cua tre*".