Perhaps you should try some spelling variations:
phuong khanh » phuong thanh, phuong hanh, phuong anh
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
khanh toan » thanh toan, khanh thanh, khanh thuan
manh tung » manh hung, thanh tung
cua nhung » va nhung
hieu van » hieu va, thien van, lieu va
tung cua » trung cua, tuong cua, dung cua
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 van)) - manh tung cua nhung phuong khanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu van)) - manh tung cua nhung phuong khanh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu van)) - manh tung cua nhung phuong khanh toan cau*.