Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
vat dung » van dung, va dung, viet dung
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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: theo ((chieu sang) or (chiet tach)) - hanh trinh ((va ung) or (vat dung)) cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chiet tach)) - hanh trinh ((va ung) OR (vat dung)) cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chiet tach)) - hanh trinh ((va ung) or (vat dung)) cong van toan cao*.