Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
toc sac » toc sach, toc san, hoc sach
tai cua » thai cua, tai cuc, tri cua
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
lai hoi » dai hoi, lai hoa, lai roi
ky dang » ky nang, ky danh
sac ky » cac ky, sai ky
luc va » tuc va, loc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky dang ((ma hoa) or (lai hoi)). hieu ve cam ((duc va) or (luc va)) thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky dang ((ma hoa) OR (lai hoi)). hieu ve cam ((duc va) OR (luc va)) thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sac ky dang ((ma hoa) or (lai hoi)). hieu ve cam ((duc va) or (luc va)) thanh tai cua tre*.