Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau canh dep snippets" » "dan canh dep snippets", "dau lanh dep snippets", "dau tranh dep snippets", "dau cach de snippets", "dau hanh de snippets", "dau cai dep 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: (((("dau canh dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau canh dep snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau canh dep snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau canh dep snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.