Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
su cac » tu cac, su cao, su can
va bao » va bai
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang x hoi. lieu va bao ((xuc va) OR (luc va)) hanh trinh ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang x hoi. lieu va bao ((xuc va) OR (luc va)) hanh trinh ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang x hoi. lieu va bao ((xuc va) OR (luc va)) hanh trinh ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang x hoi. lieu va bao ((xuc va) OR (luc va)) hanh trinh ((cua tre) or (cuu tre))*.