Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
cua xuc » cua duc, cua tuc, cua cuc
hang di » hang doi, hang vi, hang dien
hanh di » hanh vi, hanh de, danh di
hieu ve » hieu va, hieu van
xuc va » duc va, tuc va, luc va
ve cua » le cua, de cua, te cua
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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