Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi lan cong snippets" » "thi luan cong snippets", "thi lanh cong snippets", "thi van cong snippets", "thi hanh cong snippets", "thi nang cong snippets", "thi lien cong 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 lan cong 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 lan cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi lan cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi lan cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.