Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong khanh » phuong thanh, phuong hanh, phuong anh
chieu sang » chieu sach, chieu xanh, nhieu tang
khanh toan » thanh toan, khanh thanh, khanh thuan
hieu lang » hieu quang, nhieu tang, hieu van
manh tung » thanh tung
manh hung » anh huong
cua nhung » va nhung
toan cau » toan cao, toan ban, toan tap

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

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