Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mon khau cac snippets" » "san khau cac snippets", "han khau cac snippets", "mon chu cac snippets", "mon khai cac snippets", "mon khau cao snippets", "mon khau sach 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: (((("mon khau cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mon khau cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mon khau cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mon khau cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.