Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat hoc cau snippets" » "nha hoc cau snippets", "chat hoc cau snippets", "nhan hoc cau snippets", "nhat hoc cao snippets", "nhat hoc cac snippets", "nhat hoc can 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: (((("nhat hoc 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: (((("nhat hoc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat hoc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat hoc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.