Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung tri cu snippets" » "nhung bai cu snippets", "nhung bi cu snippets", "nhung gi cu snippets", "nhung tri cua snippets", "nhung tri co snippets", "nhung tri du 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: (((("nhung tri cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung tri cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung tri cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tri cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.