Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
thong manh » thong minh, thong mang, thong danh
hieu lang » chieu sang, hieu quang, nhieu tang
cap thong » cap tong, chap thuong, phap thong
manh toan » thanh toan, anh tuan, tinh toan
tung cap » trung cap, cung cap, thong cap
toan cau » toan cao, toan ban, toan tap

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) or (hieu lang)) - thanh tung cap thong thong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (hieu lang)) - thanh tung cap thong thong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (hieu lang)) - thanh tung cap thong thong manh toan cau*.