Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
doi trinh » doc trinh, dong trinh, doi trong
doi tinh » hoi tinh, don tinh, boi tinh
tinh cua » trinh cua, sinh cua, tinh chat
dong tan » duong tan, dong tai, dong san
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi tinh) or (doi trinh)) tinh - nhanh tinh cua cong dong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi tinh) OR (doi trinh)) tinh - nhanh tinh cua cong dong tan toan cau*.