Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc ai ca snippets" » "ngoc hai ca snippets", "ngoc pi ca snippets", "ngoc anh ca snippets", "ngoc bai ca snippets", "ngoc li ca snippets", "ngoc ai da 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 ai ca 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 ai ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc ai ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc ai ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.