Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu
thang cua » thong cua, hang cua, than cua
trung cua » truong cua, trung tuan, trung cap
cong van » cong vang, cong san, song van
van tan » van tuan, van ban, van tai
tan cao » toan cao, tao cao, tay cao

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) hanh - hanh ((thang cua) OR (trung cua)) nhung cong van tan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (hoc hien)) hanh - hanh ((thang cua) or (trung cua)) nhung cong van tan cao~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (hoc hien)) hanh - hanh ((thang cua) or (trung cua)) nhung cong van tan cao*.