Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
danh vai » danh sai, danh va, doanh van
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
cac le » cach le, cac he, bac le

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 xa hoi. hieu ve ((cac le) OR (mac le)) va danh vai ((cuu tre) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve ((cac le) OR (mac le)) va danh vai ((cuu tre) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu ve ((cac le) OR (mac le)) va danh vai ((cuu tre) or (va triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve ((cac le) OR (mac le)) va danh vai ((cuu tre) or (va triet))*.