Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
nhan thong » nhan trong, nha thong, nhan khong
chieu sang » chieu sach, chieu xanh, nhieu tang
dan phuong » doan phuong, van phuong, lan phuong
hieu lang » hieu quang, nhieu tang, hieu van
thong ca » thong cua, thong cac, thong cap
toan tap » toan ban
ca dan » cac dan, ca dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu sang)) - nhan thong ca dan phuong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sang)) - nhan thong ca dan phuong tinh toan tap.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sang)) - nhan thong ca dan phuong tinh toan tap*.