Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phong cong » phong chong, thong cong, chong cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh bang » anh bang, hanh mang, lanh bang
lang tuan » lang xuan, quang tuan, hoang tuan
doc hieu » toc thieu, hoc thieu, hoc hien
bang cac » nang cao, hang ca, dung cac
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu lang - hanh bang cac ((phong cong) or (nhung phuong)) lang tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu lang - hanh bang cac ((phong cong) OR (nhung phuong)) lang tuan cau*.