Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gen cong cua snippets" » "den cong cua snippets", "len cong cua snippets", "nen cong cua snippets", "gen cong cu snippets", "gen dong cua snippets", "gen huong cua 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: (((("gen cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gen cong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gen cong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gen cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.