Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"1000 tu cao snippets" » "000 tu cao snippets", "1000 cau cao snippets", "1000 cu cao snippets", "1000 tu cac snippets", "1000 vu cao 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: (((("1000 tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("1000 tu cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( 1000 tu cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("1000 tu cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.