Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hang tai » hang va, dung tai
hanh tai » thanh tai, han tai, hinh tai
sach ty » sach y, sach tu, sach thu
duc van » duc va, duc tan, duc manh
tu sach » thu sach, su sach, te sach
ve pham » vi pham, ve phan, ve phat
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
v pham » vi pham, d pham

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ((ve pham) OR (v pham)) duc van ((hanh tai) OR (hang tai)) ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu ((ve pham) OR (v pham)) duc van ((hanh tai) or (hang tai)) ve triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((ve pham) OR (v pham)) duc van ((hanh tai) or (hang tai)) ve triet*.