Perhaps you should try some spelling variations:
thai thong » thoai thong, thai hong, thai phong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
canh tinh » hanh tinh, manh tinh, canh tranh
tinh thai » sinh thai, tinh toan, tinh chat
ho chieu » theo chieu, doi chieu, mot chieu
cong tam » cong tac, cong tan, cong nam
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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) or (hoc thieu)) xanh - canh tinh thai thong cong tam ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) xanh - canh tinh thai thong cong tam ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) xanh - canh tinh thai thong cong tam ((toan cau) or (toan tap))*.