Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi lieu lon snippets" » "thi lieu code snippets", "tai lieu lon snippets", "thi lien lon snippets", "thi dieu lon snippets", "thi lieu hoc snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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 lieu lon snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi lieu lon snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi lieu lon snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi lieu lon snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.