Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian van cay snippets" » "giang van cay snippets", "gian dan cay snippets", "gian lan cay snippets", "gian van cau snippets", "gian van bay snippets", "gian van ca 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: (((("gian van cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian van cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian van cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian van cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.