Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
thanh gi » thanh nghi, thanh gian, thanh hai
va thanh » gia thanh, ban thanh, va tinh
chau tho » chat thom, cau thi, phu tho
chau phu » chau phi, chau au, cho phu
hieu ke » hieu kem, chieu ke, hieu ky
ly nang » ky nang, ly hang, ly vang
vu sach » vu bach, su sach, vu khach
y nang » ky nang, v nang, may nang
gi su » gia su, ki su, oi su

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ((y nang) or (ly nang)) xa hoi. hieu ke ((chau phu) OR (chau tho)) va thanh gi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((y nang) OR (ly nang)) xa hoi. hieu ke ((chau phu) OR (chau tho)) va thanh gi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((y nang) or (ly nang)) xa hoi. hieu ke ((chau phu) OR (chau tho)) va thanh gi su triet".
• Adding a wildcard symbol may retrieve word variants: vu sach ((y nang) or (ly nang)) xa hoi. hieu ke ((chau phu) OR (chau tho)) va thanh gi su triet*.