Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den da cau snippets" » "dien da cau snippets", "den do cau snippets", "dan da cau snippets", "den dat cau snippets", "den va cau 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 da cau 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 da cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den da cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den da cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.