Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khai mo dong snippets" » "khac mo dong snippets", "khi mo dong snippets", "khai bao dong snippets", "khai mot dong snippets", "khai mo rong snippets", "khai mo nong 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: (((("khai mo dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khai mo dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khai mo dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khai mo dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.