Perhaps you should try some spelling variations:
kham duc » pham duc, kham cuoc, pham duy
thu bang » thu ban, chu bang, thu trang
phan lap » phan dau
thu hang » thi hang, thuc hanh, thu huong
hanh lai » hanh lam, hanh tai, thanh lap
te sach » toc sach
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thu bang) or (thu hang)) ma hoi. hieu vu kham duc va ((hanh lai) or (phan lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu bang) OR (thu hang)) ma hoi. hieu vu kham duc va ((hanh lai) OR (phan lap)) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((thu bang) or (thu hang)) ma hoi. hieu vu kham duc va ((hanh lai) or (phan lap)) cua tre*.