Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hang so snippets" » "van hang code snippets", "van khang so snippets", "van hoang so snippets", "van thang so snippets", "van hang son snippets", "van hoang son snippets", "van hang hoa 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: (((("python using java snippets") or ("van hang so snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van hang so snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van hang so snippets ))) or ( locating bug core snippets ))*.