Perhaps you should try some spelling variations:
vinh cuu » dinh cuu, sinh cua, dinh cu
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
vi cuu » vi luu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang x ho. hieu va cam xuc ((va hanh) or (va danh)) ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang x ho. hieu va cam xuc ((va hanh) OR (va danh)) ((vi cuu) OR (vinh cuu)) tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang x ho. hieu va cam xuc ((va hanh) or (va danh)) ((vi cuu) or (vinh cuu)) tre*.