Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thac va moi snippets" » "thuc va moi snippets", "thai va moi snippets", "tac va moi snippets", "thac va mot snippets", "thac ve moi snippets", "thac va mo 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: (((("thac va 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: (((("thac va moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thac va moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thac va moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.