Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thoi khac he snippets" » "tho nhac he snippets", "hoc khac he snippets", "khoa khac he snippets", "thoi khac ve snippets", "thoi khac hau snippets", "thoi khac thi 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: (((("thoi khac he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thoi khac he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi khac he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi khac he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.