Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khat dan mon snippets" » "hat dan mon snippets", "khau dan mon snippets", "khao danh mon snippets", "khat dap mon snippets", "khat dan dong snippets", "khat dong mon 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: (((("khat dan mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khat dan mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khat dan mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khat dan mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.