Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
xanh tai » hanh tai, anh tai, vanh tai
vu sach » vu bach, vu khach
va nham » va cham, va tham, va nha
tai cua » thai cua, tai cuc, tri cua
su sach » so sach
xa xanh » xa thanh, cay xanh, mau xanh
thuc xa » thuc xay, tuc xa, thuc va
cua su » qua su
ma hoi » mai hoi, xa hoi, me hoi
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (su sach)) y nang ((ma hoi) or (ma hoa)). lieu va nham thuc xa xanh tai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) y nang ((ma hoi) OR (ma hoa)). lieu va nham thuc xa xanh tai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (su sach)) y nang ((ma hoi) or (ma hoa)). lieu va nham thuc xa xanh tai cua su".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (su sach)) y nang ((ma hoi) or (ma hoa)). lieu va nham thuc xa xanh tai cua su*.