Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thieu manh » hieu manh, tien manh, trieu minh
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
anh tang » anh bang, anh dang, anh nang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 manh - ((anh tang) or (nhanh quang)) cua thong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - ((anh tang) OR (nhanh quang)) cua thong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - ((anh tang) or (nhanh quang)) cua thong cong dan toan ban*.