Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tinh can ve snippets" » "tinh cao ve snippets", "tinh ca ve snippets", "minh can ve snippets", "tinh ban ve snippets", "tinh dan ve snippets", "tinh can va 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: (((("tinh can 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: (((("tinh can ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tinh can ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tinh can ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.