Perhaps you should try some spelling variations:
thanh trang » thanh trung, hanh trang, thanh thang
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
lang cong » dang cong, bang cong, hang cong
hach toan » thanh toan, manh toan
trang va » tran van, hang va
tac toan » tap toan, tam toan, tich toan
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: hoc ((chieu xanh) or (chieu tinh)) - thanh trang va lang cong ((tac toan) OR (hach toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - thanh trang va lang cong ((tac toan) OR (hach toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu tinh)) - thanh trang va lang cong ((tac toan) OR (hach toan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu tinh)) - thanh trang va lang cong ((tac toan) OR (hach toan)) cao*.