Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung hoc » trung quoc
nang cong » nang song, dang cong, bang cong
thanh tap » thanh tai, thanh tay, thanh tam
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
trung va » truong va, trang va, trung ha
cong san » cong tac

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 ((trung va) or (trung hoc)) nang cong san ((thanh tap) OR (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh ((trung va) OR (trung hoc)) nang cong san ((thanh tap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - thanh ((trung va) or (trung hoc)) nang cong san ((thanh tap) OR (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh ((trung va) or (trung hoc)) nang cong san ((thanh tap) OR (thanh lap))*.