Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua buoc cau snippets" » "qua buoc dau snippets", "qua nuoc chau snippets", "qua buoc chan snippets", "quan buoc cau 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 buoc 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: (((("qua buoc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua buoc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua buoc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.