Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
hanh thai » nhanh thai, hinh thai, hanh tai
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
thai su » thai xu, tai su, thap su
va hanh » van hanh, va thanh, va danh
su sach » so sach
nang xa » nang x, lang xa, nang ma
vu sach » vu bach, vu khach
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) OR (vu sach)) ky nang xa hoi. hieu van ((bac tuc) or (bach tuoc)) va hanh thai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. hieu van ((bac tuc) OR (bach tuoc)) va hanh thai su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang xa hoi. hieu van ((bac tuc) or (bach tuoc)) va hanh thai su triet*".