Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den chu chan snippets" » "den chu han snippets", "den chua chay snippets", "den chu van snippets", "dien chu chan snippets", "den phu chan snippets", "den thuc chan 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: (((("den chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den chu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den chu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.