Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
doanh thu » doanh tai
va doanh » van doanh, vay doanh, va danh
hieu va » lieu va, hieu qua
thu cua » thuc cua, hu cua, tu cua
thuc va » thuc vat, thuc dan, thuc day
va pham » van pham, va phat, va phap
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
ma hoi » xa hoi, ma hoa, me hoi
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ((ma hoi) OR (mai hoi)). hieu va pham thuc va doanh thu cua te~.
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ((ma hoi) or (mai hoi)). hieu va pham thuc va doanh thu cua te*.