Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
thong ban » thong van, trong ban, thong dan
thong bai » thong tai, nhung bai, thong xay
hoc dieu » hoc thieu
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc hien)) xanh - thanh trung cua thong ((thong ban) OR (thong bai)) khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc hien)) xanh - thanh trung cua thong ((thong ban) OR (thong bai)) khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc dieu) or (hoc hien)) xanh - thanh trung cua thong ((thong ban) OR (thong bai)) khan cap".
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc hien)) xanh - thanh trung cua thong ((thong ban) OR (thong bai)) khan cap*.