Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chinh su cho snippets" » "hinh su cho snippets", "chinh phu cho snippets", "chinh ta cho snippets", "chinh su choi snippets", "chinh su co snippets", "chinh cu cho 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: (((("chinh su cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chinh su cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chinh su cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chinh su cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.