Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"den su quang snippets" » "den vu quang snippets", "den tu quang snippets", "den xu quang snippets", "dan su quang snippets", "nen su quang snippets", "den su quang slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("den su quang snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den su quang snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den su quang snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den su quang snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.