Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
vu sach » vu bach, su sach, vu khach
va cham » va chat, va tham
xuc ban » duc ban, cuc ban, quoc ban
le phat » te phat, de phat, le nhat
sach ty » sach y, sach tu, sach thu
nang ro » nang co, nang ho, nang ra
ty nang » ky nang, ty xang, ty hang
va cam » va cac, va cao, va cai
ve cam » ve cham, ve cac, ve cai
ro hoi » co hoi, o hoi, mo hoi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang ro hoi. hieu ((ve cam) or (((va cam) OR (va cham)))) xuc ban thanh le phat trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ro hoi. hieu ((ve cam) OR (((va cam) OR (va cham)))) xuc ban thanh le phat trien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang ro hoi. hieu ((ve cam) or (((va cam) OR (va cham)))) xuc ban thanh le phat trien".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ro hoi. hieu ((ve cam) or (((va cam) OR (va cham)))) xuc ban thanh le phat trien*.