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