Perhaps you should try some spelling variations:
thanh thai » thanh hai, thanh tai, nhanh thai
bach tuoc » sach duoc, sach nuoc
su triet » su viet, su tien, ve triet
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
thai su » thai xu, tai su, thap su
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
bac tuc » bac tu, bac thua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky ((nang xa) OR (nang x)) hoi. hieu van ((bac tuc) or (bach tuoc)) va thanh thai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (nang x)) hoi. hieu van ((bac tuc) OR (bach tuoc)) va thanh thai su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) OR (nang x)) hoi. hieu van ((bac tuc) or (bach tuoc)) va thanh thai su triet*".