Perhaps you should try some spelling variations:
tranh cua » doanh cua, manh cua
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
van bao » van ban, van dao
su sach » so sach, vu sach
va canh » van canh, va cach, ve canh
bao xuc » bao luc, bao thuc
xuc va » duc va, tuc va, luc va
su sac » su cac, su xac
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) or (su sach)) ky nang ((ma hoi) OR (xa hoi)). hieu van bao xuc va canh tranh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su sach)) ky nang ((ma hoi) OR (xa hoi)). hieu van bao xuc va canh tranh cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su sach)) ky nang ((ma hoi) OR (xa hoi)). hieu van bao xuc va canh tranh cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su sach)) ky nang ((ma hoi) OR (xa hoi)). hieu van bao xuc va canh tranh cua tre*.