Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua kinh cac snippets" » "qua dinh cac snippets", "qua kinh bac snippets", "qua kinh can snippets", "quan kinh 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: (((("qua kinh 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: (((("qua kinh cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua kinh cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua kinh cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.