Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
dang mai » dang hai, dang mau, dang bai
thai cua » than cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
ve cham » va cham, ve chat, ve chim
vu cham » va cham, vu kham, tu cham
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
luc va » tuc va, loc 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 san ky dang mai hoi. hieu ((ve cham) OR (vu cham)) ((luc va) or (duc va)) thanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky dang mai hoi. hieu ((ve cham) OR (vu cham)) ((luc va) OR (duc va)) thanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky dang mai hoi. hieu ((ve cham) OR (vu cham)) ((luc va) or (duc va)) thanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu san ky dang mai hoi. hieu ((ve cham) OR (vu cham)) ((luc va) or (duc va)) thanh thai cua tre*.