Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc hinh hoc snippets" » "duc hinh hoc snippets", "doc hanh hoc snippets", "doc tinh hoc snippets", "doc sinh hoc snippets", "doc tin hoc snippets", "doc benh hoc 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: (((("doc hinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc hinh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc hinh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hinh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.