Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
trung can » trung cap, trung van, trong can
dung cong » dung trong
can dung » chan dung, van dung, dan dung
cong tap » cuong tap, cong tac, cong tan
tap danh » tac danh, tao danh, tap dan
danh ban » doanh ban, danh bat, danh bac

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 can dung cong tap danh ban~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh trung can dung cong tap danh ban*.