Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh gi ve snippets" » "danh gia ve snippets", "manh hai ve snippets", "manh gia ve snippets", "manh gi de snippets", "manh gi he 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: (((("manh gi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("manh gi ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh gi ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh gi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.