Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap
mang va » mang vua, hang va, dang va
bang va » hang va, ban va, trang va

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 (theo chu)) xanh - cach ((mang va) OR (bang va)) nhung cong dan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - cach ((mang va) OR (bang va)) nhung cong dan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) xanh - cach ((mang va) OR (bang va)) nhung cong dan phan cac".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - cach ((mang va) OR (bang va)) nhung cong dan phan cac*.