Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
danh di » danh du, danh dien, danh gia
xanh di » vanh dai, xanh tai
thuc xa » thuc xay, tuc xa, thuc va
su sach » so sach, vu sach
va nham » va cham, va tham, va nha
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
cua su » qua su

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

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