Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tren thi doi snippets" » "trien thi doi snippets", "tran thi doi snippets", "trieu thi doi snippets", "tren thai doi snippets", "tren thi dai snippets", "tren thi moi 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: (((("tren thi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tren thi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tren thi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tren thi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.