Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu tinh » trieu tinh, lieu tinh, chau tinh
lang cong » dang cong, bang cong, hang cong
cong tinh » cong trinh, cong vinh, long tinh
tranh va » tranh van, trang va, trinh va
toan cau » toan cao, toan ban, toan tap
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((chieu sach) OR (chieu sang))) or (chieu tinh)) - canh tranh va lang cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sach) OR (chieu sang))) OR (chieu tinh)) - canh tranh va lang cong tinh toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((((chieu sach) OR (chieu sang))) or (chieu tinh)) - canh tranh va lang cong tinh toan cau*".