Perhaps you should try some spelling variations:
nhan loai » phan loai, nhan tai
loai cay » loai may, loai nam, loai va
cay tren » chay tren, ca tren, cau tren
tu sach » thu sach, su sach, te sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va nhan » van nhan, ca nhan, va phan
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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 ((ty nang) or (ky nang)) xa hoi. hieu ve cam tuc va nhan loai cay tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ky nang)) xa hoi. hieu ve cam tuc va nhan loai cay tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam tuc va nhan loai cay tren*.