Perhaps you should try some spelling variations:
trien hoat » tien hoa
quan quan » quan quang, qua quan, quan luan
lien soat » kiem soat, bien soan, lien son
tin quan » tinh quang, trinh quan, lien quan
quan doi » quan tri, quan li
doi lien » doi dien, doi bien, doi hien
va trien » va truyen, va thiet, va tuyen
qua va » quan va, qua van, vua va

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin quan quan doi lien soat ) or ( dinh (duong OR dung) qua va trien hoat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin quan quan doi lien soat ) OR ( dinh (duong OR dung) qua va trien hoat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin quan quan doi lien soat ) or ( dinh (duong OR dung) qua va trien hoat ))".
• Adding a wildcard symbol may retrieve word variants: (( tin quan quan doi lien soat ) or ( dinh (duong OR dung) qua va trien hoat ))*.