Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan dau » phan dau, han dau, chan doan
manh va » hanh va, anh va, minh 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 thieu sach - lanh ((manh va) or (hang va)) thuong cong dan chan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - lanh ((manh va) OR (hang va)) thuong cong dan chan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - lanh ((manh va) or (hang va)) thuong cong dan chan dau*.