Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lua chi viet snippets" » "lua chi tiet snippets", "lua thi viet snippets", "lua che viet snippets", "luan chi viet snippets", "la chi viet snippets", "cua chi viet snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lua chi viet snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"lua chi viet snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( lua chi viet snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua chi viet snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.