Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hoi van » hoi va, hoi dan, hai van
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
sang ma » tang ma, nang ma, sang tao
ky sang » ky nang, ky dang, ky tang

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 sang ma hoa. hieu ((ve cham) OR (vu cham)) hoi van hanh ((ly cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky sang ma hoa. hieu ((ve cham) OR (vu cham)) hoi van hanh ((ly cua) OR (le cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky sang ma hoa. hieu ((ve cham) OR (vu cham)) hoi van hanh ((ly cua) or (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky sang ma hoa. hieu ((ve cham) OR (vu cham)) hoi van hanh ((ly cua) or (le cua)) tre*.