Perhaps you should try some spelling variations:
thong trinh » thong tinh, chuong trinh, phuong trinh
hanh trung » thanh trung, hanh trang, manh trung
chieu sang » chieu sach, chieu xanh, hieu lang
dong thong » thong thong, nong thon, dong thanh
trinh toan » tinh toan, thanh toan, trinh han
trung cua » truong cua, trung tuan, trung cap
cua dong » chua dong, cua cong, cua dang
toan cau » toan cao, toan ban, toan tap
hieu va » lieu va, hieu qua

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 sang) or (hieu va)) - hanh trung cua dong thong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (hieu va)) - hanh trung cua dong thong trinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (hieu va)) - hanh trung cua dong thong trinh toan cau*.