Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kiem van doi snippets" » "kiem va doi snippets", "kien van doi snippets", "kieu van doi snippets", "kiem van loi snippets", "kiem van noi snippets", "kiem van do 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: (((("kiem van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kiem van doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kiem van doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kiem van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.