Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
tinh quan » tinh quang, tin quan, sinh quan
kiem soat » kiem toan
lieu quan » lien quan, hieu qua, lieu van
luan vat » luan van, luan viet, luong vat
luan va » luan van, luat va
va kiem » van kien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((tinh quan) OR (trinh quan)) luan va kiem soat ) or ( trinh dung luan vat lieu quan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tinh quan) OR (trinh quan)) luan va kiem soat ) OR ( trinh dung luan vat lieu quan )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((tinh quan) OR (trinh quan)) luan va kiem soat ) or ( trinh dung luan vat lieu quan ))".
• Adding a wildcard symbol may retrieve word variants: (( ((tinh quan) OR (trinh quan)) luan va kiem soat ) or ( trinh dung luan vat lieu quan ))*.