Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
cong cang » cong cong, cong lang, cong vang
thang cau » hang cau, thong cau, thanh chau
doi hieu » doi chieu, doc hieu, doi hien
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi hieu lang - manh ((tung cua) OR (dung cua)) nhung cong cang thang cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi hieu lang - manh ((tung cua) OR (dung cua)) nhung cong cang thang cau".
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - manh ((tung cua) OR (dung cua)) nhung cong cang thang cau*.