Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, thanh hang
cong cong » cong dong, trong cong, dung cong
theo thu » theo chu, theo tu, theo tieu
thu sach » tu sach, thuat sach, thuoc sach
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo thu sach - ((hanh tang) or (((hanh mang) OR (nhanh lang)))) cua cong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo thu sach - ((hanh tang) OR (((hanh mang) OR (nhanh lang)))) cua cong cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo thu sach - ((hanh tang) or (((hanh mang) OR (nhanh lang)))) cua cong cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo thu sach - ((hanh tang) or (((hanh mang) OR (nhanh lang)))) cua cong cong tac toan cau*.