Perhaps you should try some spelling variations:
han thai » ban thai, van thai, than thoai
cham xuc » cam xuc, chat xuc, cham soc
su sach » so sach, vu sach
han tai » hang tai, nhan tai, van tai
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
xuc va » duc va, tuc va, luc va
thiet » thieu

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 ((y nang) OR (ly nang)) xa hoi. hieu ve cham xuc va ((han thai) or (han tai)) va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) xa hoi. hieu ve cham xuc va ((han thai) OR (han tai)) va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((y nang) OR (ly nang)) xa hoi. hieu ve cham xuc va ((han thai) or (han tai)) va thiet".
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) OR (ly nang)) xa hoi. hieu ve cham xuc va ((han thai) or (han tai)) va thiet*.