Perhaps you should try some spelling variations:
thieu mien » thieu nien, thieu bien, hieu hien
bach nhue » bach nhu, sach thue, bach thu
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
su tien » su kien, su hien, tu tieng

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 ty nang xa hoi. thieu mien ((bach nhue) or (bach hue)) va hanh va su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. thieu mien ((bach nhue) OR (bach hue)) va hanh va su tien.
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. thieu mien ((bach nhue) or (bach hue)) va hanh va su tien*.