Perhaps you should try some spelling variations:
vang nhanh » vung nhanh, van thanh, van hanh
nhung cong » dung cong, thong cong, hang cong
dieu danh » dieu hanh, tieu danh, dia danh
cong vang » cong lang, cong quang, cong ngang
nhanh cay » nhanh ha, nhanh bac, nhanh va
hoc dieu » hoc thieu, hoc hien
doanh va » doan va, doanh tai, doanh cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc dieu danh - toan doanh va nhung cong vang nhanh cay~.
• Adding a wildcard symbol may retrieve word variants: hoc dieu danh - toan doanh va nhung cong vang nhanh cay*.