Perhaps you should try some spelling variations:
nang cam » nang cham, nang cao, nang cap
hanh vai » hanh vi, hanh va, hanh tai
thuc dan » thuc hanh, hoc dan, thuc vat
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cu tren » tu tren, dua tren
hang xa » hoang xa, hang va, hang ca
ki nang » ky nang
ty hang » ly hang, ty xang, thi hang
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vai cu » vai cua, van cu

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 hang xa hoi. ki nang cam ((((xuc va) OR (luc va))) or (thuc dan)) hanh vai cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty hang xa hoi. ki nang cam ((((xuc va) OR (luc va))) OR (thuc dan)) hanh vai cu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty hang xa hoi. ki nang cam ((((xuc va) OR (luc va))) or (thuc dan)) hanh vai cu tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ty hang xa hoi. ki nang cam ((((xuc va) OR (luc va))) or (thuc dan)) hanh vai cu tren*.