Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
dang khuong » dang thuong, hang thuong, bang phuong
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
hoang cua » hang cua, hoang xuan, hoang tuan
hoan cua » hoa cua, toan cua, han cua
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sang) OR (hieu lang)) - anh ((hoang cua) or (hoan cua)) dang khuong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sang) OR (hieu lang)) - anh ((hoang cua) OR (hoan cua)) dang khuong tinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((chieu sang) OR (hieu lang)) - anh ((hoang cua) or (hoan cua)) dang khuong tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: toc ((chieu sang) OR (hieu lang)) - anh ((hoang cua) or (hoan cua)) dang khuong tinh toan cao*.