Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » hanh trinh, hanh trang, lanh tranh
tuong manh » duong manh, luong manh, tung manh
doi chieu » doc hieu, doi chi, ho chieu
manh toan » thanh toan, anh tuan, tinh toan
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: doi chieu sang - ((((hanh tranh) OR (canh tranh))) or (hanh chinh)) va nhung tuong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ((((hanh tranh) OR (canh tranh))) OR (hanh chinh)) va nhung tuong manh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - ((((hanh tranh) OR (canh tranh))) or (hanh chinh)) va nhung tuong manh toan cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ((((hanh tranh) OR (canh tranh))) or (hanh chinh)) va nhung tuong manh toan cao*.