Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
xuc va » duc va, tuc va, luc va
ve va » ve van, te va, ke va

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 (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va thanh ve va trien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va thanh ve va trien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) xuc va thanh ve va trien*".