Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung cap, dung cua
cong tan » cong tac, cong san, cong thanh
chan tu » phan tu, han tu, chai tu
chon tu » con tu, cho tu, choi tu

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