Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
vu sach » vu bach, su sach, vu khach
so sach » so sanh, bo sach, hoc sach
co sach » bo sach, cuon sach, hoc sach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
van cam » van nam, van lam, van cau
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
ve cua » le cua, de cua, te cua

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) or (((so sach) OR (co sach)))) ky dang xa hoi. hieu van cam xuc va thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (((so sach) OR (co sach)))) ky dang xa hoi. hieu van cam xuc va thanh ve cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (((so sach) OR (co sach)))) ky dang xa hoi. hieu van cam xuc va thanh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (((so sach) OR (co sach)))) ky dang xa hoi. hieu van cam xuc va thanh ve cua tre*.