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