Perhaps you should try some spelling variations:
trinh he » trinh han, trinh hoa, trinh thi
su sach » so sach, vu sach
tinh he » hinh he, tinh ha, tich he
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
y nang » ky nang, ly nang, may nang
xuc va » duc va, tuc va, luc va
v nang » va nang, vu nang, van nang
cua te » cua tu

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