Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
thu sach » tu sach, thuat sach, thuoc sach
dung cua » dung luan, dung cho
vang cua » mang cua, hang cua, tang cua
xuc vay » xuc hay
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc vay doanh ((vang cua) or (dung cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc vay doanh ((vang cua) OR (dung cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((nang xa) OR (nang ma)) hoi. hieu ve cam xuc vay doanh ((vang cua) or (dung cua)) te*".