Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
duc manh » suc manh, duc anh, duc minh
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
duc van » duc va, duc tan, duc phan
hieu va » lieu va, hieu qua
danh ha » danh hoa, doanh ha, danh hau
ky danh » ky anh, ky dang
va cam » va cham, va cac, va cao
ha hoi » hoa hoi, ha noi, xa hoi
su tai » su thi, tu tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su tai) or (su hai)) ky danh ha hoi. hieu va cam ((duc van) or (duc manh)) thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su tai) OR (su hai)) ky danh ha hoi. hieu va cam ((duc van) OR (duc manh)) thanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su tai) or (su hai)) ky danh ha hoi. hieu va cam ((duc van) or (duc manh)) thanh tai cua tre*.