Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"doc van tu snippets" » "do van tu snippets", "hoc van tu snippets", "duc van tu snippets", "doc van thu snippets", "doc van du snippets", "doc ban tu snippets", "doc van tu slippers"

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: (((("doc van tu snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( doc van tu snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doc van tu snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.