Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham phai con snippets" » "ham khai con snippets", "pham phap con snippets", "nham phat con snippets", "ham phai co snippets", "ham hai con snippets", "ham phau con 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: (((("ham phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham phai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham phai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham phai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.