Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, dua ban
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
sac ky » cac ky

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

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