Perhaps you should try some spelling variations:
"tra ha cach snippets" » "tra ha code snippets", "tra hao cach snippets", "tra va cach snippets", "tra ca cach snippets", "tra chat cach snippets", "tran hai cach snippets", "trang ha cach snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("tra ha cach snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tra ha cach snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tra ha cach snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tra ha cach snippets"))) or ("locating bug core snippets"))*.