Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
hanh trang » thanh trung, hanh trinh, minh trang
hoc thieu » toc thieu, hoc hien
tuan dung » tuan duong, tran dung, tan dung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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 khang - ((hanh trang) OR (canh tranh)) tuan dung ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - ((hanh trang) OR (canh tranh)) tuan dung ((cong dan) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - ((hanh trang) OR (canh tranh)) tuan dung ((cong dan) or (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - ((hanh trang) OR (canh tranh)) tuan dung ((cong dan) or (cong tan)) toan ban*.