Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"le khanh cao snippets" » "le hanh cac snippets", "le hanh cat snippets", "le khanh van snippets", "le thanh cao snippets", "le anh cao snippets", "de thanh 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: (((("le khanh 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: (((("le khanh cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le khanh cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le khanh cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.