Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong hanh » phuong thanh, phuong anh, phuong danh
chieu sang » chieu sach, chieu xanh, nhieu tang
thanh tung » thanh cong
hieu lang » hieu quang, nhieu tang, hieu van
manh tung » manh hung
cua nhung » va nhung
hanh toan » thanh toan, khanh toan, manh toan
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 (thanh tung)) cua nhung phuong hanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu lang)) - ((manh tung) OR (thanh tung)) cua nhung phuong hanh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) or (hieu lang)) - ((manh tung) OR (thanh tung)) cua nhung phuong hanh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu lang)) - ((manh tung) OR (thanh tung)) cua nhung phuong hanh toan cau*.