Perhaps you should try some spelling variations:
ha triet » nha triet, va triet, hanh triet
hanh lam » thanh lap, hanh kem, hanh va
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
lam ha » nam ha, dam ha, lam chat
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) ty nang xa hoi. hieu ((ve cam) or (ve cac)) tuc va hanh lam ha triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang xa hoi. hieu ((ve cam) OR (ve cac)) tuc va hanh lam ha triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ty nang xa hoi. hieu ((ve cam) or (ve cac)) tuc va hanh lam ha triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ty nang xa hoi. hieu ((ve cam) or (ve cac)) tuc va hanh lam ha triet*.