Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau bac cau snippets" » "chau bac cau snippets", "ha bac cau snippets", "huu bac cau snippets", "hau bach cau snippets", "hau ba cau snippets", "hau bac 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: (((("hau bac 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: (((("hau bac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau bac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.