Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van han du snippets" » "van han code snippets", "van hanh du snippets", "van phan du snippets", "van nhan du snippets", "van han dau snippets", "van van du snippets", "van han tu 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 han du 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 han du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van han du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van han du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.