Perhaps you should try some spelling variations:
cong thong » cong thuong, cong trong, dong thong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua
manh cua » doanh cua, ban cua
minh van » dinh van, minh va, menh van
vinh van » dinh van, trinh van, sinh vat

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - canh ((tranh cua) OR (manh cua)) cong thong ((minh van) or (vinh van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - canh ((tranh cua) OR (manh cua)) cong thong ((minh van) OR (vinh van)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - canh ((tranh cua) OR (manh cua)) cong thong ((minh van) or (vinh van)) ban*".