Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat buoc du snippets" » "dat nuoc du snippets", "dat duoc du snippets", "vat duoc du snippets", "bat buoc dau snippets", "bat buoc de snippets", "bat luoc dau 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: (((("bat buoc 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: (((("bat buoc du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat buoc du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat buoc du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.