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