Perhaps you should try some spelling variations:
thuat sai » thuat bai, thuat san, thuat cai
cua triet » cua viet, su triet, va triet
nang mai » nang ma, nang tai, lang mai
hanh vai » hanh vi, hanh va, hanh tai
mai hoi » mai khoi, dai hoi, lai hoi
hieu va » lieu va, hieu qua
vai cua » dai cua, hai cua, lai cua
va cam » va cham, va cac, va cao
xac va » tac va, bac va, mac va
sai ky » sac ky
tuc va » thuc va, truc va, tuc xa
ac va » tac va, bac va, mac va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sai ky nang mai hoi. hieu va cam ((((xac va) or (ac va))) or (tuc va)) hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sai ky nang mai hoi. hieu va cam ((((xac va) OR (ac va))) OR (tuc va)) hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sai ky nang mai hoi. hieu va cam ((((xac va) or (ac va))) or (tuc va)) hanh vai cua triet*.