Perhaps you should try some spelling variations:
phan loc » phan loai, phan quoc, phan ngoc
su sach » so sach, vu sach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va phan » van phan, va phat, va phap
va tinh » may tinh
tinh do » trinh do, tinh doi, tinh da
cua tre » cua te, cuu tre, cua triet
loc va » hoc va, luc va
do cua » doi cua, co cua, de cua

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) or (te sach)) ky nang xa hoi. hieu va phan loc va tinh do cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky nang xa hoi. hieu va phan loc va tinh do cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky nang xa hoi. hieu va phan loc va tinh do cua tre*.