Perhaps you should try some spelling variations:
ban hanh » ban hang
su sach » so sach, vu sach
vu cham » va cham, vu kham, tu cham
vai cua » hai cua, lai cua, bai cua
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam

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 xa hoi. hieu ((ve cam) or (vu cham)) xuc ban hanh ((vai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu ((ve cam) OR (vu cham)) xuc ban hanh ((vai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu ((ve cam) or (vu cham)) xuc ban hanh ((vai cua) or (dai cua)) tre*.