Perhaps you should try some spelling variations:
ban hanh » ban hang
ban danh » ban doanh, ban dan, van danh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
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: tu sach ky nang xa hoi. hieu ve cam xuc ((ban hanh) or (ban danh)) ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ve cam xuc ((ban hanh) OR (ban danh)) ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve cam xuc ((ban hanh) or (ban danh)) ((vi cua) or (di cua)) tre*.