Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat hang cau snippets" » "hoat hang cau snippets", "dat hang cau snippets", "mat hang cau snippets", "hat hang dau snippets", "hat hang ca snippets", "hat nhung 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: (((("hat hang 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: (((("hat hang cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat hang cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat hang cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.