Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
khanh thuan » khanh thuong, thanh tuan, khan than
nhieu tang » chieu sang, nhiet nang
khanh toan » thanh toan, khanh thanh, manh toan
hieu lang » chieu sang, hieu quang, hieu van
manh tung » manh hung, thanh tung
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (hieu lang)) - manh tung cua nhung phuong ((khanh toan) OR (khanh thuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (hieu lang)) - manh tung cua nhung phuong ((khanh toan) OR (khanh thuan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((nhieu tang) or (hieu lang)) - manh tung cua nhung phuong ((khanh toan) OR (khanh thuan)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (hieu lang)) - manh tung cua nhung phuong ((khanh toan) OR (khanh thuan)) cau*.