Perhaps you should try some spelling variations:
hanh ninh » nhanh ninh, hanh tinh, hanh dinh
pham thuc » phap thuc, pham chuc, nham thuc
ninh viet » sinh vien, anh viet
doc sach » hoc sach, nuoc sach, dac sac
toc sach » hoc sach, thuoc sach, nuoc sach
viet cua » viec cua, viet ca, viet qua
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc sach) or (toc sach)) ky nang ((x hoi) or (xa hoi)). hieu va pham thuc hanh ninh viet cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc sach) OR (toc sach)) ky nang ((x hoi) OR (xa hoi)). hieu va pham thuc hanh ninh viet cua te.
• Adding a wildcard symbol may retrieve word variants: ((doc sach) or (toc sach)) ky nang ((x hoi) or (xa hoi)). hieu va pham thuc hanh ninh viet cua te*.