Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
dau xuc » dau xac, dau xua, dau nuoc
lai cua » dai cua, hai cua, lai chau
vai cua » dai cua, hai cua, bai cua
van anh » van thanh, tuan anh, van minh
xuc van » duc van, luc van, vuc van
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
va dau » va dao

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 ((y nang) or (v nang)) xa hoi. hieu va dau xuc van anh ((vai cua) OR (lai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (v nang)) xa hoi. hieu va dau xuc van anh ((vai cua) OR (lai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (v nang)) xa hoi. hieu va dau xuc van anh ((vai cua) OR (lai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) xa hoi. hieu va dau xuc van anh ((vai cua) OR (lai cua)) tre*.