Perhaps you should try some spelling variations:
phan loai » phan lap
sau tien » dau tien, su tien, cau tieng
dan loai » dang loai, nhan loai, dang hoai
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
ky dang » ky danh
cam tuc » cam xuc, cam tu, nam thuc
va cam » va cham, va cac, va cao
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 ((ky dang) or (ky nang)) xa hoi. hieu va cam tuc va ((dan loai) OR (phan loai)) sau tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky dang) OR (ky nang)) xa hoi. hieu va cam tuc va ((dan loai) OR (phan loai)) sau tien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky dang) or (ky nang)) xa hoi. hieu va cam tuc va ((dan loai) OR (phan loai)) sau tien".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky dang) or (ky nang)) xa hoi. hieu va cam tuc va ((dan loai) OR (phan loai)) sau tien*.