Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap toan cuc snippets" » "tap doan cuc snippets", "tap quan cuc snippets", "bai toan cuc snippets", "tap toan cua snippets", "tap toan buc snippets", "tap toan duc 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: (((("tap toan cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap toan cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap toan cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap toan cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.