Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hang hang » nang hang, cang thang, hung thang
va phuong » va thuong, cac phuong
cong nhan » cong nhat, cong thanh, cong san
nhan tuan » nhan luan, than tuan, thanh tuan
doc hieu » toc thieu, hoc thieu, hoc hien
va thong » va thuong, he thong, va cong
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 - hang hang ((va thong) or (va phuong)) cong nhan tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu lang - hang hang ((va thong) OR (va phuong)) cong nhan tuan cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu lang - hang hang ((va thong) or (va phuong)) cong nhan tuan cau*.