Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
doanh cua » doanh luan
van nhanh » van thanh, van khanh, van nhan
manh cua » ban cua
van hanh » van thanh, ban hanh, van anh

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 khang - hanh ((manh cua) or (doanh cua)) thong cong ((van nhanh) OR (van hanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - hanh ((manh cua) OR (doanh cua)) thong cong ((van nhanh) OR (van hanh)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - hanh ((manh cua) or (doanh cua)) thong cong ((van nhanh) OR (van hanh)) cau*".