Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
khang chan » khang chien, quang chan
cua trong » cua truong, cua trung, qua trong
tan khang » van khang, tao khang, tinh khang
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - ((thanh trung) OR (thanh tung)) cua trong cong tan khang chan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - ((thanh trung) OR (thanh tung)) cua trong cong tan khang chan".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((thanh trung) OR (thanh tung)) cua trong cong tan khang chan*.