Perhaps you should try some spelling variations:
cham cuu » cap cuu
van hanh » van thanh, ban hanh, van anh
nang mai » nang ma, nang tai, lang mai
chat cua » nhat cua, chat va, chat huu
tu sach » thu sach, su sach, te sach
va hanh » va thanh, va danh, ban hanh
cu tren » tu tren, dua tren
sach ly » sach y, sach lo, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
ly nang » ky nang, ly hang, ly vang
vi cu » vi su, vi xu, vi du

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 ly nang mai hoi. lieu va ((cham cuu) or (chat cua)) ((va hanh) OR (van hanh)) vi cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang mai hoi. lieu va ((cham cuu) OR (chat cua)) ((va hanh) OR (van hanh)) vi cu tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ly nang mai hoi. lieu va ((cham cuu) or (chat cua)) ((va hanh) OR (van hanh)) vi cu tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang mai hoi. lieu va ((cham cuu) or (chat cua)) ((va hanh) OR (van hanh)) vi cu tren*.