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