Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong kem he snippets" » "dong kem code snippets", "dong ket he snippets", "dung kem he snippets", "dong nam he snippets", "dong ke he snippets", "dong kem theo snippets", "dong kem hieu 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 kem he 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 kem he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong kem he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong kem he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.