Perhaps you should try some spelling variations:
trinh tai » trinh toan, trinh tu, trinh han
hinh tai » chinh tai, hinh thai, hinh bai
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cac dac » cac dan, cac dai, cac bac
cuc tre » duc tre, cua tre, cuu tre
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
dac va » duc va, day va, dat va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang xa hoi. hieu va cac dac va ((hinh tai) or (trinh tai)) cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. hieu va cac dac va ((hinh tai) OR (trinh tai)) cuc tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. hieu va cac dac va ((hinh tai) or (trinh tai)) cuc tre*.