Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi tac ve snippets" » "thi tam ve snippets", "thi thao ve snippets", "thi tran ve snippets", "thi tac ke snippets", "thi tap ve snippets", "thi tac de 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: (((("thi tac ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi tac ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi tac ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi tac ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.