Perhaps you should try some spelling variations:
ki thuat » ky thuat
danh hai » dang hai, lanh hai, manh hai
va thuat » ky thuat, va thuc, va thiet
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, va hanh
va cham » va chat, va tham
can ky » van ky, dan ky, ban ky
luc va » duc va, tuc va, loc va
tu can » tu ban, tu cac, thu canh
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: tu can ky nang x hoi. lieu ((va cham) or (((va thuat) OR (ki thuat)))) luc va danh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky nang x hoi. lieu ((va cham) OR (((va thuat) OR (ki thuat)))) luc va danh hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang x hoi. lieu ((va cham) or (((va thuat) OR (ki thuat)))) luc va danh hai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang x hoi. lieu ((va cham) or (((va thuat) OR (ki thuat)))) luc va danh hai cua tre*.