Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap
manh va » anh va, minh va, lanh va
hanh va » hang va, hanh vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chieu sang)) - lanh ((manh va) or (hanh va)) thuong cong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - lanh ((manh va) OR (hanh va)) thuong cong dan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chieu sang)) - lanh ((manh va) or (hanh va)) thuong cong dan phan cac".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chieu sang)) - lanh ((manh va) or (hanh va)) thuong cong dan phan cac*.