Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
truong cao » truong dai
dang trong » dung trong, dong trong, lang trong
truong ca » truong va, trong ca, truong dai
ho chieu » theo chieu, hoc thieu, doi chieu
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - thanh ((truong ca) or (truong cao)) dang trong ((tac toan) OR (tam toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh ((truong ca) OR (truong cao)) dang trong ((tac toan) OR (tam toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh ((truong ca) or (truong cao)) dang trong ((tac toan) OR (tam toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh ((truong ca) or (truong cao)) dang trong ((tac toan) OR (tam toan)) cau*.