Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang
nhieu tang » hieu lang, nhiet nang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh trang » thanh trung, canh tranh, hanh trinh
trang tham » trang cham, trang thai, trang thach
tham dung » pham dung, tham cung, tham nhung
dung cong » dung trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 (nhieu tang))) or (chieu sach)) - hanh trang tham dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu sang) OR (nhieu tang))) OR (chieu sach)) - hanh trang tham dung cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((chieu sang) OR (nhieu tang))) or (chieu sach)) - hanh trang tham dung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu sang) OR (nhieu tang))) or (chieu sach)) - hanh trang tham dung cong tac toan cau*.