Perhaps you should try some spelling variations:
bach xuat » bach xuan, xac xuat, bach qua
viec bach » vien bach, viec ban, viec bao
hieu viec » nhieu viec, hieu ve, sieu viet
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, tu cach, vu sach
nang ma » tang ma, sang ma, nang cao
tu nang » tru nang, tu nong, tu nano
te sach » toc sach
su sach » so sach, vu sach
ma khoa » may khoa, mai khoa, da khoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) or (su sach))) or (te sach)) tu nang ma khoa. hieu viec bach xuat va hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (su sach))) OR (te sach)) tu nang ma khoa. hieu viec bach xuat va hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (su sach))) or (te sach)) tu nang ma khoa. hieu viec bach xuat va hanh vai cua viet*.