Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
cuc tre » duc tre, cua tre, cuu tre
dac van » cac van, dao van, dam van
cac dac » cac dan, cac dai, cac bac
thu san » thuy san, thu ban, phu san
nang ro » nang co, nang ho, nang ra
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
tu sac » tu sach, tu cac, tu san
tu ban » thu ban, te ban
ro lai » o lai, ho lai, ru lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sac) or (tu ban))) or (thu san)) ky nang ro lai. hieu ve cac dac van hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sac) OR (tu ban))) OR (thu san)) ky nang ro lai. hieu ve cac dac van hanh tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((((tu sac) or (tu ban))) or (thu san)) ky nang ro lai. hieu ve cac dac van hanh tai cuc tre*.