Perhaps you should try some spelling variations:
chieu sang » chieu xanh, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
canh manh » lanh manh, canh tranh, cach mang
cua nhung » va nhung
manh cua » doanh cua, ban cua
cong tac » cong ty
tac can » tac van, tac quan, tac vang
can tu » ban tu, van tu, han tu

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) OR (hieu lang))) or (chieu sach)) - canh manh cua nhung cong tac can tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu sang) OR (hieu lang))) OR (chieu sach)) - canh manh cua nhung cong tac can tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((chieu sang) OR (hieu lang))) or (chieu sach)) - canh manh cua nhung cong tac can tu".
• Adding a wildcard symbol may retrieve word variants: doi ((((chieu sang) OR (hieu lang))) or (chieu sach)) - canh manh cua nhung cong tac can tu*.