Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong dan » phuong danh, phuong doan, huong dan
hieu lang » chieu sang, hieu quang, nhieu tang
manh tung » manh hung, thanh tung
dan khoan » dan khoa, dai khoang, toan khoan
khoan cam » khoa cam, khoan va, phan cam
hoc hieu » hoc thieu, hoc hien, doc hieu
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu lang - manh tung va nhung phuong dan khoan cam~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu lang - manh tung va nhung phuong dan khoan cam*.