Perhaps you should try some spelling variations:
nhanh hai » nhanh thai, thanh hai, nhanh ha
cau tren » cu tren, dau tren, ca tren
hanh hai » thanh hai, hang hai, hanh tai
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duc ban » duc tan, duc van, dua ban
nang xa » nang x, lang xa, nang ma
cuu tre » cua tre, cau treo
sac ky » cac ky, sai ky
su sac » su sach, su cac, su xac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu ve pham duc ban ((hanh hai) OR (nhanh hai)) ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve pham duc ban ((hanh hai) OR (nhanh hai)) ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve pham duc ban ((hanh hai) OR (nhanh hai)) ((cuu tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. hieu ve pham duc ban ((hanh hai) OR (nhanh hai)) ((cuu tre) or (cau tren))*.