Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van du chu snippets" » "van du code snippets", "van duy chu snippets", "van dau chu snippets", "van de chu snippets", "van tu chu snippets", "van du chi snippets", "van du phu snippets"
"python using java snippets" » "python using data snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van du chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van du chu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van du chu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van du chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.