Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu xac chat snippets" » "thu cac chat snippets", "thu cao chat snippets", "thu xac suat snippets", "thau xay chat 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: (((("thu xac chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu xac chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu xac chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu xac chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.