Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tho moi can snippets" » "cho moi can snippets", "thi moi can snippets", "khoe moi can snippets", "tho voi can snippets", "tho loi can snippets", "tho moi ban 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: (((("tho moi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tho moi can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tho moi can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tho moi can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.