Perhaps you should try some spelling variations:
kinh gian » tinh gian, binh giang, minh giang
kiem soat » kiem toan
gian dan » gian lang
van kiem » va kiem, van kien, van hieu
toan tap » toan ban
vat bien » vat lieu, cam bien
dan van » dang van, doan van, dao van
tap vat » tap va
bien so » bien doi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( kinh gian dan van kiem soat ) or ( tinh toan tap vat bien so ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( kinh gian dan van kiem soat ) OR ( tinh toan tap vat bien so ))*.