Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh thang
nhung cong » dung cong, thong cong, hang cong
hien hanh » dieu hanh
vua nhung » va nhung, cua nhung, qua nhung
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan tai » toan tai, quan tai, tan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - ((nhanh mang) OR (nhanh quang)) vua nhung cong van tuan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - ((nhanh mang) OR (nhanh quang)) vua nhung cong van tuan tai".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - ((nhanh mang) OR (nhanh quang)) vua nhung cong van tuan tai*.