Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
cam duc » cao duc, pham duc, nam duoc
va danh » va dinh, va dan, va hanh
vai cua » hai cua, lai cua, bai cua
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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 v nang xa hoi. hieu qua ((cam duc) or (cam xuc)) va danh ((vai cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach v nang xa hoi. hieu qua ((cam duc) OR (cam xuc)) va danh ((vai cua) OR (dai cua)) te.
• Adding a wildcard symbol may retrieve word variants: tu sach v nang xa hoi. hieu qua ((cam duc) or (cam xuc)) va danh ((vai cua) or (dai cua)) te*.