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