Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
hoc chieu » hoc thieu, ho chieu, hoc hien
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban
hanh va » hang va, hanh vi
han va » hang va, nhan va, ban va

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 ((han va) OR (hanh va)) nhung cong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - hanh ((han va) OR (hanh va)) nhung cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh ((han va) OR (hanh va)) nhung cong manh toan ban*.