Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hong cay snippets" » "thi cong cay snippets", "thi phuong cay snippets", "thi hanh cay snippets", "thi thong cay snippets", "thi chong chay snippets", "thi phong chay 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: (((("thi hong cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi hong cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hong cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hong cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.