Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
chat huu » pham huu
chat xuc » cam xuc, chao xu, chat cua
tu sach » thu sach, su sach, te sach
tinh vi » trinh vi, tinh voi, tinh va
va tinh » may tinh
hieu va » lieu va, hieu qua
luu tre » luu tru, cuu tre, luy tre
vi luu » vi lua
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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 thi nang ((x hoi) or (o hoi)). hieu va ((chat xuc) or (chat huu)) va tinh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thi nang ((x hoi) OR (o hoi)). hieu va ((chat xuc) OR (chat huu)) va tinh vi luu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach thi nang ((x hoi) or (o hoi)). hieu va ((chat xuc) or (chat huu)) va tinh vi luu tre*.