Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
ky mang » ky nang, ke mang, ky dang
may hoi » may thoi, tay hoi, mai hoi
hieu ve » hieu va, hieu van
xuc tan » duc tan, xuc ban, tuc tang
cua tre » cuu tre, cua triet, dua tren
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky mang may hoi. hieu ve cam ((xuc tan) OR (xuc tac)) thanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky mang may hoi. hieu ve cam ((xuc tan) OR (xuc tac)) thanh vi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky mang may hoi. hieu ve cam ((xuc tan) OR (xuc tac)) thanh vi ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu san ky mang may hoi. hieu ve cam ((xuc tan) OR (xuc tac)) thanh vi ((cua tre) or (cua te))*.