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