Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
cong ngang » cong nhan, cong quang, cong lang
hoc chieu » hoc thieu, ho chieu, hoc hien
ngang tan » nganh toan, nang tai, nang tao
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
tan ban » toan ban, tang ban, van ban

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 - hanh ((tang cua) or (mang cua)) nhung cong ngang tan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sang - hanh ((tang cua) OR (mang cua)) nhung cong ngang tan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh ((tang cua) or (mang cua)) nhung cong ngang tan ban*.