Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han nuoc do snippets" » "phan nuoc do snippets", "han quoc do snippets", "chan nuoi do snippets", "han nuoc doi snippets", "han nuoc o snippets", "han nuoc xo 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: (((("han nuoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han nuoc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han nuoc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han nuoc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.