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