Perhaps you should try some spelling variations:
thieu hanh » thien thanh, thien chanh, thieu khang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
thang cua » thong cua, hang cua, than cua
trung cua » truong cua, trung tuan, trung cap
van tuan » van quan, van ban, anh tuan
van tan » van ban, van tai, van thanh

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