Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc hao hoi snippets" » "ngoc hai hoi snippets", "ngoc ha hoi snippets", "ngoc phan hoi snippets", "ngoc tao hoi snippets", "ngoc khao noi snippets", "ngoc thao hoc 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: (((("ngoc hao 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: (((("ngoc hao hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc hao hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc hao hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.