Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim dan chan snippets" » "kim dan gian snippets", "kim dan ca snippets", "kim van chat snippets", "kim dung chan snippets", "kim ngan chan snippets", "kim bang chan 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 dan chan 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 dan chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim dan chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim dan chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.