Perhaps you should try some spelling variations:
khien thich » bien thich, khien tinh, kien trich
truong cao » truong dai
thong cong » trong cong, tong cong, thong thong
hoc khien » hoc hien, hoc nghien, hoc thieu
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
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 khien thich - hanh ((truong cao) or (trung tam)) thong cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc khien thich - hanh ((truong cao) OR (trung tam)) thong cong manh toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc khien thich - hanh ((truong cao) or (trung tam)) thong cong manh toan cao*.