Perhaps you should try some spelling variations:
kham duc » pham duc, kham cuoc, pham duy
ban hanh » ban hang
te sach » toc sach
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
hieu vu » hieu va, hieu ve, hieu su
vu kham » vu khanh
duc ban » duc tan, duc van, dua ban
hanh de » hanh ve, hanh kem
de cua » le cua, te cua, dieu cua
cua te » cua tu

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) or (thuat toan)) ky tang xa hoi. hieu vu kham duc ban hanh de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat toan)) ky tang xa hoi. hieu vu kham duc ban hanh de cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat toan)) ky tang xa hoi. hieu vu kham duc ban hanh de cua te*.