Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
van cam » van lam, van cau, van dam
va hanh » van hanh, va thanh, va danh
doi cua » dai cua, hoi cua
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va

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 (vu sach)) y nang xa hoi. hieu ((van cam) or (van nam)) xuc va hanh doi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) y nang xa hoi. hieu ((van cam) OR (van nam)) xuc va hanh doi cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) y nang xa hoi. hieu ((van cam) or (van nam)) xuc va hanh doi cua vat".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) y nang xa hoi. hieu ((van cam) or (van nam)) xuc va hanh doi cua vat*.