Perhaps you should try some spelling variations:
huong doi » huong dan, trong doi, dung doi
nam thuc » nam thuoc, am thuc, nam thu
va huong » va thuong, va phuong, va tuong
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, dam thuc
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
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: so sach y nang xa hoi. hieu va ((cam tuc) OR (nam thuc)) va huong doi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach y nang xa hoi. hieu va ((cam tuc) OR (nam thuc)) va huong doi cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach y nang xa hoi. hieu va ((cam tuc) OR (nam thuc)) va huong doi cua tre*.