Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi muc chat snippets" » "thi muc code snippets", "thi duoc chat snippets", "thi luc nhat snippets", "thi hoc chat snippets", "thi cuc chat snippets", "thu muc chat snippets", "thi mui chat snippets"
"python using java snippets" » "python using 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 muc chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi muc chat snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi muc chat snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi muc chat snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.