Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vay doanh » van doanh, ly doanh, voi doanh
vang cua » mang cua, hang cua, tang cua
vien cam » vien cac, vien cao, vien nam
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
xuc vay » xuc hay
van cua » ban cua, dan cua, nan cua
ky tang » ky nang, ky dang, kho tang
ma hoi » mai hoi, ma hoa, me hoi

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 ky tang ((ma hoi) or (xa hoi)). hieu vien cam xuc vay doanh ((van cua) OR (vang cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky tang ((ma hoi) OR (xa hoi)). hieu vien cam xuc vay doanh ((van cua) OR (vang cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky tang ((ma hoi) or (xa hoi)). hieu vien cam xuc vay doanh ((van cua) OR (vang cua)) te*".