Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
chieu sang » chieu sach, chieu xanh, hieu lang
nhung dung » phuong dung, ung dung, thong dung
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » trinh luat, trinh quan, trinh luan
tinh cua » sinh cua, tinh chat, tranh cua
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - hanh ((trinh cua) OR (tinh cua)) ((nhung dung) or (nhung phuong)) van tan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh ((trinh cua) OR (tinh cua)) ((nhung dung) OR (nhung phuong)) van tan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - hanh ((trinh cua) OR (tinh cua)) ((nhung dung) or (nhung phuong)) van tan tap".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - hanh ((trinh cua) OR (tinh cua)) ((nhung dung) or (nhung phuong)) van tan tap*.