Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
va kinh » va tinh, qua kinh
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 cam xuc ((va kinh) or (va thanh)) ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ve cam xuc ((va kinh) OR (va thanh)) ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ve cam xuc ((va kinh) or (va thanh)) ((vi cua) or (di cua)) tre*.