Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
vu sach » vu bach, su sach, vu khach
danh tu » anh tu, doanh thu
va danh » va dinh, va dan, va hanh
thuc va » thuc vat, thuc dan, thuc day
va pham » van pham, va phat, va phap
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
ma hoi » xa hoi, ma hoa, me hoi
tu cua » hu cua, vu cua
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) OR (ty hang)) ((ma hoi) OR (mai hoi)). hieu va pham thuc va danh tu cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty nang) OR (ty hang)) ((ma hoi) or (mai hoi)). hieu va pham thuc va danh tu cua te~".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) OR (ty hang)) ((ma hoi) or (mai hoi)). hieu va pham thuc va danh tu cua te*.