Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bom voi cong snippets" » "bom noi cong snippets", "bom moi cong snippets", "bom tai cong snippets", "bom vi cong snippets", "som voi cong snippets", "form voi cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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