Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
chau tinh » cuu tinh, ha tinh, cua tinh
trinh vat » trinh van, trinh luat, sinh vat
vat thong » va thong, vat trong, mat thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ho ((((chieu sang) or (chinh sach))) or (chau tinh)) - hanh trinh vat thong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sang) OR (chinh sach))) OR (chau tinh)) - hanh trinh vat thong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sang) or (chinh sach))) or (chau tinh)) - hanh trinh vat thong cong tac toan cao*.