Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
truong cua » truong ca, truong quan, truong cao
trung cua » trung tuan, trung cap, dung cua
nong cong » cong cong, tong cong, nang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
tinh » trinh, dinh, minh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((trieu tinh) or (chieu sang)) - manh ((trung cua) OR (truong cua)) nong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((trieu tinh) OR (chieu sang)) - manh ((trung cua) OR (truong cua)) nong cong tan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((trieu tinh) or (chieu sang)) - manh ((trung cua) OR (truong cua)) nong cong tan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((trieu tinh) or (chieu sang)) - manh ((trung cua) OR (truong cua)) nong cong tan toan cao*.