Perhaps you should try some spelling variations:
thanh dinh » thanh binh, thanh tinh, thanh vinh
hieu van » hieu va, thien van, lieu va
dinh cuu » dinh chi
cao hoi » cau hoi, co hoi, cao hoc
cuu tre » cua tre, cau tren, cau treo
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky nang cao hoi. hieu van nam ((xuc va) or (duc va)) thanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang cao hoi. hieu van nam ((xuc va) OR (duc va)) thanh dinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang cao hoi. hieu van nam ((xuc va) or (duc va)) thanh dinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang cao hoi. hieu van nam ((xuc va) or (duc va)) thanh dinh cuu tre*.