Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vu khach hoi snippets" » "vu khanh hoa snippets", "vu hoach hoi snippets", "vu sach hoi snippets", "vu khanh hoi snippets", "vu khac hoi snippets", "vay khach hoi 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: (((("vu khach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vu khach hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vu khach hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vu khach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.