Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
hanh tranh » hanh trinh, hanh trang, lanh tranh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
chat cam » chat cao, thuat cam, chat 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 tranh) or (canh tranh)) cua nhung cong tan ((chat cam) OR (chat va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - ((hanh tranh) OR (canh tranh)) cua nhung cong tan ((chat cam) OR (chat va)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - ((hanh tranh) or (canh tranh)) cua nhung cong tan ((chat cam) OR (chat va))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - ((hanh tranh) or (canh tranh)) cua nhung cong tan ((chat cam) OR (chat va))*.