Perhaps you should try some spelling variations:
cung thang » cang thang, hung thang, dung thang
thang van » tang van, thanh van, thong van
kiem soat » kiem toan
hieu luat » hieu qua
tin cung » tin dung, tin ung, tinh cuong
van tien » toan tien, van hieu, van tuan
tien hoa » dien hoa, trien hoat, tien va
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin cung thang van ((kiem soat) or (hieu luat)) ) or ( trinh dung luan van tien hoa ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin cung thang van ((kiem soat) OR (hieu luat)) ) OR ( trinh dung luan van tien hoa )).
• Adding a wildcard symbol may retrieve word variants: (( tin cung thang van ((kiem soat) or (hieu luat)) ) or ( trinh dung luan van tien hoa ))*.