Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
lieu nha » lieu khoa, lieu phap, lieu tham
nam thuc » nam thuoc, nam thu, nam tu
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
xa hanh » xa thanh, xa khanh, va hanh
tai cuu » tai cuc, tai buu, tai cua
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: ((su sach) or (thu sach)) ky nang xa hoi. lieu nha ((nam thuc) OR (am thuc)) xa hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) ky nang xa hoi. lieu nha ((nam thuc) OR (am thuc)) xa hanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (thu sach)) ky nang xa hoi. lieu nha ((nam thuc) OR (am thuc)) xa hanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) ky nang xa hoi. lieu nha ((nam thuc) OR (am thuc)) xa hanh tai cuu tre*.