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