Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim hao cong snippets" » "kim cao cong snippets", "kim vao cong snippets", "kim ha cong snippets", "kim hai cong snippets", "kim ho cong snippets", "kim hyo cong 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: (((("kim hao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim hao cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim hao cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim hao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.