Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc ki cau snippets" » "hoc ky cau snippets", "hoc kinh cau snippets", "hoc khoi cau snippets", "hoc ke cau snippets", "hoc di cau snippets", "hoc ki can 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: (((("hoc ki cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc ki cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc ki cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc ki cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.