Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
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: vu sach ky nang xa hoi. hieu ve cam xuc ((van hanh) OR (va danh)) ((vi cua) OR (di cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang xa hoi. hieu ve cam xuc ((van hanh) OR (va danh)) ((vi cua) OR (di cua)) tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang xa hoi. hieu ve cam xuc ((van hanh) OR (va danh)) ((vi cua) OR (di cua)) tre*.