Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
minh viet » ninh viet, dinh viet, kinh viet
doc sach » hoc sach, nuoc sach, dac sac
hieu van » hieu va, thien van, lieu va
viet cua » viec cua, viet ca, viet qua
dan minh » doan minh, dang minh, van minh
thuc dan » thuc hanh, hoc dan, thuc vat
van pham » san pham, van phan, van phat
toc sach » hoc sach, thuoc sach, nuoc sach
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 van pham thuc dan minh 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 van pham thuc dan minh viet cua te.
• Adding a wildcard symbol may retrieve word variants: ((doc sach) or (toc sach)) ky nang ((x hoi) or (xa hoi)). hieu van pham thuc dan minh viet cua te*.