Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
danh vai » danh sai, danh va, doanh van
vai cuu » vai cua
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (su sach)) ty nang xa hoi. hieu va ((cam xuc) or (nam thu)) va danh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ty nang xa hoi. hieu va ((cam xuc) OR (nam thu)) va danh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ty nang xa hoi. hieu va ((cam xuc) or (nam thu)) va danh vai cuu tre*.