Perhaps you should try some spelling variations:
kinh dai » sinh dai, kinh dao, kinh hai
su sach » so sach, vu sach
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
qua cac » cua cac
cac tuc » cac toc, cac tu, cac tac
va kinh » va tinh, qua kinh
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 ((ty nang) or (ty hang)) xa hoi. hieu qua cac tuc va kinh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ty hang)) xa hoi. hieu qua cac tuc va kinh dai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ty hang)) xa hoi. hieu qua cac tuc va kinh dai cua te*.