Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
hieu van » hieu va, thien van, lieu va
cau tuc » cau truc, cau tu, cau luc
ban cua » ban quan
van cua » vang cua, dan cua, nan cua
tuc vay » tuc va, tu vay, tuc xay
te sach » toc sach
van cau » van dau, van hau, van chat
sach ky » sac ky, sach y, sach ty
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may

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 ma) or (sang ma)) hoi. hieu van cau tuc vay doanh ((van cua) OR (ban cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang ma) OR (sang ma)) hoi. hieu van cau tuc vay doanh ((van cua) OR (ban cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky ((nang ma) or (sang ma)) hoi. hieu van cau tuc vay doanh ((van cua) OR (ban cua)) tre*".