Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dep hoc danh snippets" » "dep hoc dan snippets", "dep hoc anh snippets", "dep hoc hanh snippets", "de hoc danh snippets", "den hoc danh snippets", "dep hoi danh snippets", "dep hoc danh slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dep hoc danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dep hoc danh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dep hoc danh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dep hoc danh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.