Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi dan tre snippets" » "thi doan tre snippets", "thi lan tre snippets", "thi dai tre snippets", "thi dan tren snippets", "thi ban tre snippets", "thi dan tra 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 dan tre 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 dan tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi dan tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi dan tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.