Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"dong cac so snippets" » "duong cac so snippets", "dong bac so snippets", "dung cac so snippets", "dong cac co snippets", "dong cac bo snippets", "dong cac ho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cac so snippets") OR ("python using data snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dong cac so snippets ) or ( python using data snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dong cac so snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.