Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, va cam
xuc va » tuc va, luc va, xac va
cua cu » cua chu, cua cau, cua su
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 o hoi. hieu ve cam ((xuc va) or (duc va)) hanh hai ((cua cu) or (qua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang o hoi. hieu ve cam ((xuc va) OR (duc va)) hanh hai ((cua cu) OR (qua su)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang o hoi. hieu ve cam ((xuc va) or (duc va)) hanh hai ((cua cu) or (qua su))*.