Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
nang cong » nang song, dang cong, bang cong
cong danh » cuong danh, cong dan, cong thanh
danh toan » manh toan, anh toan, dan toan
trinh va » trinh van, trinh vat, trinh ve
toan cau » toan cao, toan ban, toan tap
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) OR (chieu xanh)) - hanh ((hanh va) or (trinh va)) nang cong danh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - hanh ((hanh va) OR (trinh va)) nang cong danh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu xanh)) - hanh ((hanh va) or (trinh va)) nang cong danh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu xanh)) - hanh ((hanh va) or (trinh va)) nang cong danh toan cau*.