Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
hinh thanh » dinh thanh, tinh thanh, nhanh thanh
kho tang » cao tang
duc hinh » duc thinh, duc minh, duc hanh
cua tre » cuu tre, cua triet, dua tren
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, ky trong
cam duc » cam xuc, cao duc, pham duc
su cac » tu cac, su cao, su can
ve cam » ve cham, ve cac, va cam
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: su cac ((ky tang) or (kho tang)) xa hoi. hieu ve cam duc hinh thanh thai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ((ky tang) OR (kho tang)) xa hoi. hieu ve cam duc hinh thanh thai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ((ky tang) or (kho tang)) xa hoi. hieu ve cam duc hinh thanh thai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: su cac ((ky tang) or (kho tang)) xa hoi. hieu ve cam duc hinh thanh thai ((cua tre) OR (cua te))*.