Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi dinh cau snippets" » "do dinh cau snippets", "doi kinh cau snippets", "doi tinh cau snippets", "doi dinh chau snippets", "doi dinh cuu snippets", "doi dinh cu 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: (((("doi dinh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi dinh cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi dinh cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dinh cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.