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