Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh hoi » hanh thoi, hanh noi, hanh hoa
nang xa » nang x, lang xa, nang ma
ve pham » vi pham, v pham, ve phat
ve phan » va phan, ke phan, ve phat
va hanh » van hanh, va thanh, va danh
chuc te » thuc te, chuc ke, chuc theo
y nang » ky nang, ly nang, v nang

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 y nang xa hoi. hieu ((ve pham) OR (ve phan)) duc va hanh hoi chuc te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu ((ve pham) OR (ve phan)) duc va hanh hoi chuc te".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((ve pham) OR (ve phan)) duc va hanh hoi chuc te*.