Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc cau mot snippets" » "hoc cao mot snippets", "hoc cac mot snippets", "hoc can mot snippets", "hoc dau mot snippets", "hoc cuu mot snippets", "hoc chua mot 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: (((("hoc cau mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cau mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc cau mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cau mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.