Perhaps you should try some spelling variations:
va thieu » va thiet, va hieu, va tieu
nhan tai » hang tai, van tai, toan tai
sach ty » sach y, sach tu, sach thu
han tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
ve chim » va chim, ve cham, ve chinh
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cham » va chat, va tham
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang xa hoi. hieu ((ve chim) or (va cham)) xuc va ((han tai) or (nhan tai)) va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((ve chim) OR (va cham)) xuc va ((han tai) OR (nhan tai)) va thieu.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ((ve chim) or (va cham)) xuc va ((han tai) or (nhan tai)) va thieu*.