Perhaps you should try some spelling variations:
vinh cuu » sinh cua, dinh cu, tinh cua
dinh cuu » dinh chi
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 va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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 va cam tuc va hanh ((vinh cuu) OR (dinh cuu)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu va cam tuc va hanh ((vinh cuu) OR (dinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu va cam tuc va hanh ((vinh cuu) OR (dinh cuu)) tre*.