Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan ve mon snippets" » "luat ve mon snippets", "luan va mon snippets", "quan ve mon snippets", "luan ve moi snippets", "luan ve mot snippets", "luan me mon 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: (((("luan ve mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan ve mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan ve mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan ve mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.