Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, thien anh, thien danh
nhung tung » nhung tuong, nhung dung, nhung vung
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
tung dan » dung dan, huong dan, trung dai
toan cao » toan ban
toan tap » toan ban

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) OR (hieu manh)) - thanh trung cap nhung tung dan ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - thanh trung cap nhung tung dan ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - thanh trung cap nhung tung dan ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - thanh trung cap nhung tung dan ((toan cao) or (toan tap))*.