Perhaps you should try some spelling variations:
huong doi » huong dan, trong doi, dung doi
cua triet » cua viet, su triet, va triet
va huong » va thuong, va phuong, va tuong
so sach » so sanh, bo sach, co sach
ty nang » ky nang, ty hang, ly nang
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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 ((ty nang) or (ty xang)) x ho. hieu va cam tuc va huong doi ((cua triet) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((ty nang) OR (ty xang)) x ho. hieu va cam tuc va huong doi ((cua triet) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: so sach ((ty nang) or (ty xang)) x ho. hieu va cam tuc va huong doi ((cua triet) or (cua tu))*.