Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
dinh vai » dinh van, dinh vi, dinh va
may nang » may nong, ky nang, cam nang
dai luan » bai luan, dan luan, dat luan
viec dai » vien dai, viec tai, viec dat
vai cua » dai cua, hai cua, lai cua
va dinh » van dinh, va kinh, va tinh
luan va » luan van, luat va
te sach » toc sach
cua tuc » cua duc, cua tu, cua thuoc
y nang » ky nang, ly nang, day nang
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((((y nang) or (may nang))) or (v nang)) x hoi. hieu viec dai luan va dinh vai cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((((y nang) OR (may nang))) OR (v nang)) x hoi. hieu viec dai luan va dinh vai cua tuc.
• Adding a wildcard symbol may retrieve word variants: te sach ((((y nang) or (may nang))) or (v nang)) x hoi. hieu viec dai luan va dinh vai cua tuc*.