Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dac van tin snippets" » "cac van tin snippets", "dao van tin snippets", "dam van tin snippets", "dac van tien snippets", "dac van tan snippets", "dac van thinh 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: (((("dac van tin snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( dac van tin snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dac van tin snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.