Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac trong du snippets" » "cay trong du snippets", "hoc trong du snippets", "tac trong dau snippets", "tac trong dua snippets", "tac trong su 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 trong du 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 trong du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac trong du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac trong du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.