Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, lieu vien
vien dai » hien dai
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
dai lop » da lop, dai luoc
cuu tre » cua tre, cau tren, cau treo
lop va » lap va, hop va, nop va
va dan » ca dan, va dao, va dau
dan vi » doan vi, don vi, dan va
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc cac ky nang xa hoi. hieu vien dai lop va dan vi cuu tre~.
• Adding a wildcard symbol may retrieve word variants: hoc cac ky nang xa hoi. hieu vien dai lop va dan vi cuu tre*.