Perhaps you should try some spelling variations:
tuong quan » truong quan, thong quan, luong quan
tin tuong » tin thuong, tin huong, tin trong
kiem soat » kiem toan
xuan kien » xuan dien, xuan kieu, xuan vien
luan lien » lua lien, luan len, quang lien
dung thi » dung tai, dung tri, dung chi
van kiem » va kiem, van kien, van hieu
thi van » thi lan, thi hanh, thi nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung thi van kiem soat ) or ( tin tuong quan ((xuan kien) or (luan lien)) soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung thi van kiem soat ) OR ( tin tuong quan ((xuan kien) OR (luan lien)) soan )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung thi van kiem soat ) or ( tin tuong quan ((xuan kien) or (luan lien)) soan ))*.