Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong tu lon snippets" » "dong tu code snippets", "dong luc lon snippets", "thong tu lon snippets", "dong tai lon snippets", "dong su lon snippets", "dong tu hon snippets", "dong tu loi 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: (((("dong tu lon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tu lon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong tu lon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tu lon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.