Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"canh van doi snippets" » "anh van doi snippets", "can van doi snippets", "cach van doi snippets", "canh van loi snippets", "canh van noi snippets", "canh van do 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: (((("canh van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("canh van doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh van doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.