Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
hoc chieu » hoc thieu, ho chieu, hoc hien
thong cap » thong cac, trung cap, thong xay
thong cua » thong quan, thong tu, huong cua
nang phan » nang thanh, nang quan, dung phan
nang phat » nang suat, van phat

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

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