Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
trung dung » ung dung, trung uong, trinh dung
thong dung » thong cong, thong thuong
hoc chieu » hoc thieu, ho chieu, hoc hien
tung tuan » trung tuan, hung tuan, quang tuan
tuan cu » tuan tu, quan cua, tuan thu

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 tung tuan ((trung dung) or (thong dung)) anh tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - thanh tung tuan ((trung dung) OR (thong dung)) anh tuan cu.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - thanh tung tuan ((trung dung) or (thong dung)) anh tuan cu*.