Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"keo cong cua snippets" » "ke cong cua snippets", "kho cong cua snippets", "keo cung cua snippets", "keo cong cu snippets", "keo dong cua snippets", "keo 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: (((("keo 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: (((("keo cong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( keo cong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("keo cong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.