Perhaps you should try some spelling variations:
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
kinh di » kinh do, kinh i, minh di
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
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 di 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 di 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 di cua te*.