Perhaps you should try some spelling variations:
hanh cham » thanh cham, thanh pham, khanh pham
thi hanh » thi thanh
sinh cau » trinh cau, sinh vat, sinh va
cham duc » pham duc, cham soc, pham duy
cau tren » cu tren, dau tren, ca tren
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
nang xa » lang xa, nang ma, mang xa
te sach » toc sach

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 ky ((nang xa) or (nang x)) hoi. thi hanh cham duc ((va hanh) OR (va danh)) sinh cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang xa) OR (nang x)) hoi. thi hanh cham duc ((va hanh) OR (va danh)) sinh cau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang xa) or (nang x)) hoi. thi hanh cham duc ((va hanh) OR (va danh)) sinh cau tren*".