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