Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
trung quan » truong quan, trong quan, trung tuan
hoc chieu » hoc thieu, ho chieu, hoc hien
quan dung » quang dung, quan duong, qua dung
hach toan » thanh toan, manh toan
tac toan » tap toan, tam toan, tich toan

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 - thanh trung quan dung trong ((tac toan) OR (hach toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - thanh trung quan dung trong ((tac toan) OR (hach toan)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh trung quan dung trong ((tac toan) OR (hach toan)) ban*.