Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc cua phap slippers" » "hoc cu phap slippers", "hoc va phap slippers", "hoc cua nha slippers", "hoc cua phap slippery", "hoc cua phap grippers"
"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: (((("hoc cua phap slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cua phap slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc cua phap slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cua phap slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.