Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
phong dung » phuong dung, thong dung, khong dung
hoc thieu » hoc hien
van phong » van dong, hai phong
tinh van » trinh van, dinh van, tinh va
dung dat » dung va, dung tai
dat phan » data phan, dam phan, sat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) tinh - nhanh tinh van phong dung dat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - nhanh tinh van phong dung dat phan tu.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) tinh - nhanh tinh van phong dung dat phan tu*.