Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac thanh du snippets" » "ban thanh du snippets", "cac thanh du snippets", "tai thanh du snippets", "bac thanh do snippets", "bac thanh tu snippets", "bac thanh 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: (((("bac thanh 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: (((("bac thanh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac thanh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac thanh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.